- XML declarations should use IANA encoding names

Pointed out by:	hrs

40 files changed, 40 insertions, 40 deletions

diff --git a/nl_NL.ISO8859-1/books/handbook/advanced-networking/chapter.sgml b/nl_NL.ISO8859-1/books/handbook/advanced-networking/chapter.sgml
index 3cc8dc6e7c..ee7652674f 100644
--- a/nl_NL.ISO8859-1/books/handbook/advanced-networking/chapter.sgml
+++ b/nl_NL.ISO8859-1/books/handbook/advanced-networking/chapter.sgml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="ISO8859-1" standalone="no"?>
+<?xml version="1.0" encoding="iso-8859-1" standalone="no"?>
 <!--
      The FreeBSD Dutch Documentation Project
 
diff --git a/nl_NL.ISO8859-1/books/handbook/audit/chapter.sgml b/nl_NL.ISO8859-1/books/handbook/audit/chapter.sgml
index 9cd3820f15..ba44876cb4 100644
--- a/nl_NL.ISO8859-1/books/handbook/audit/chapter.sgml
+++ b/nl_NL.ISO8859-1/books/handbook/audit/chapter.sgml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="ISO8859-1" standalone="no"?>
+<?xml version="1.0" encoding="iso-8859-1" standalone="no"?>
 <!--
      The FreeBSD Dutch Documentation Project
      $FreeBSD$
diff --git a/nl_NL.ISO8859-1/books/handbook/basics/chapter.sgml b/nl_NL.ISO8859-1/books/handbook/basics/chapter.sgml
index 55a5954ae6..caf489abbc 100644
--- a/nl_NL.ISO8859-1/books/handbook/basics/chapter.sgml
+++ b/nl_NL.ISO8859-1/books/handbook/basics/chapter.sgml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="ISO8859-1" standalone="no"?>
+<?xml version="1.0" encoding="iso-8859-1" standalone="no"?>
 <!--
      The FreeBSD Dutch Documentation Project
 
diff --git a/nl_NL.ISO8859-1/books/handbook/bibliography/chapter.sgml b/nl_NL.ISO8859-1/books/handbook/bibliography/chapter.sgml
index f8fa0e89f3..1941efff3f 100644
--- a/nl_NL.ISO8859-1/books/handbook/bibliography/chapter.sgml
+++ b/nl_NL.ISO8859-1/books/handbook/bibliography/chapter.sgml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="ISO8859-1" standalone="no"?>
+<?xml version="1.0" encoding="iso-8859-1" standalone="no"?>
 <!--
      The FreeBSD Dutch Documentation Project
 
diff --git a/nl_NL.ISO8859-1/books/handbook/book.sgml b/nl_NL.ISO8859-1/books/handbook/book.sgml
index c794b9a807..66dbb08ac1 100644
--- a/nl_NL.ISO8859-1/books/handbook/book.sgml
+++ b/nl_NL.ISO8859-1/books/handbook/book.sgml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="ISO8859-1" standalone="no"?>
+<?xml version="1.0" encoding="iso-8859-1" standalone="no"?>
 <!DOCTYPE book PUBLIC "-//FreeBSD//DTD DocBook XML V4.2-Based Extension//EN"
 	"../../../share/sgml/freebsd42.dtd" [
 <!ENTITY % entities PUBLIC "-//FreeBSD//ENTITIES DocBook FreeBSD Entity Set//NL" "../../share/sgml/entities.ent">
diff --git a/nl_NL.ISO8859-1/books/handbook/boot/chapter.sgml b/nl_NL.ISO8859-1/books/handbook/boot/chapter.sgml
index fc901cc6d5..6a8346b305 100644
--- a/nl_NL.ISO8859-1/books/handbook/boot/chapter.sgml
+++ b/nl_NL.ISO8859-1/books/handbook/boot/chapter.sgml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="ISO8859-1" standalone="no"?>
+<?xml version="1.0" encoding="iso-8859-1" standalone="no"?>
 <!--
      The FreeBSD Dutch Documentation Project
 
diff --git a/nl_NL.ISO8859-1/books/handbook/chapters.ent b/nl_NL.ISO8859-1/books/handbook/chapters.ent
index d23c4443ae..15ec6fa058 100644
--- a/nl_NL.ISO8859-1/books/handbook/chapters.ent
+++ b/nl_NL.ISO8859-1/books/handbook/chapters.ent
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="ISO8859-1"?>
+<?xml version="1.0" encoding="iso-8859-1"?>
 <!--
      Maakt entiteiten aan voor elk hoofdstuk in het FreeBSD Handboek. Elke
      entiteit heet chap.foo, waarbij foo de waarde is van het id attribuut
diff --git a/nl_NL.ISO8859-1/books/handbook/colophon.sgml b/nl_NL.ISO8859-1/books/handbook/colophon.sgml
index 76240ec67f..a09d22b363 100644
--- a/nl_NL.ISO8859-1/books/handbook/colophon.sgml
+++ b/nl_NL.ISO8859-1/books/handbook/colophon.sgml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="ISO8859-1" standalone="no"?>
+<?xml version="1.0" encoding="iso-8859-1" standalone="no"?>
 <!--
      The FreeBSD Dutch Documentation Project
 
diff --git a/nl_NL.ISO8859-1/books/handbook/config/chapter.sgml b/nl_NL.ISO8859-1/books/handbook/config/chapter.sgml
index 1a0b9323f7..e6b08fed12 100644
--- a/nl_NL.ISO8859-1/books/handbook/config/chapter.sgml
+++ b/nl_NL.ISO8859-1/books/handbook/config/chapter.sgml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="ISO8859-1" standalone="no"?>
+<?xml version="1.0" encoding="iso-8859-1" standalone="no"?>
 <!--
      The FreeBSD Dutch Documentation Project
 
diff --git a/nl_NL.ISO8859-1/books/handbook/cutting-edge/chapter.sgml b/nl_NL.ISO8859-1/books/handbook/cutting-edge/chapter.sgml
index bd09f7c6dc..dc7f7d2dbb 100644
--- a/nl_NL.ISO8859-1/books/handbook/cutting-edge/chapter.sgml
+++ b/nl_NL.ISO8859-1/books/handbook/cutting-edge/chapter.sgml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="ISO8859-1" standalone="no"?>
+<?xml version="1.0" encoding="iso-8859-1" standalone="no"?>
 <!--
      The FreeBSD Dutch Documentation Project
 
diff --git a/nl_NL.ISO8859-1/books/handbook/desktop/chapter.sgml b/nl_NL.ISO8859-1/books/handbook/desktop/chapter.sgml
index f2cc0465ca..ee559b410a 100644
--- a/nl_NL.ISO8859-1/books/handbook/desktop/chapter.sgml
+++ b/nl_NL.ISO8859-1/books/handbook/desktop/chapter.sgml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="ISO8859-1" standalone="no"?>
+<?xml version="1.0" encoding="iso-8859-1" standalone="no"?>
 <!--
      The FreeBSD Dutch Documentation Project
 
diff --git a/nl_NL.ISO8859-1/books/handbook/disks/chapter.sgml b/nl_NL.ISO8859-1/books/handbook/disks/chapter.sgml
index b80fda059b..15b668f2bd 100644
--- a/nl_NL.ISO8859-1/books/handbook/disks/chapter.sgml
+++ b/nl_NL.ISO8859-1/books/handbook/disks/chapter.sgml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="ISO8859-1" standalone="no"?>
+<?xml version="1.0" encoding="iso-8859-1" standalone="no"?>
 <!--
      The FreeBSD Dutch Documentation Project
 
diff --git a/nl_NL.ISO8859-1/books/handbook/dtrace/chapter.sgml b/nl_NL.ISO8859-1/books/handbook/dtrace/chapter.sgml
index f946d0a1e1..4a7307ba98 100644
--- a/nl_NL.ISO8859-1/books/handbook/dtrace/chapter.sgml
+++ b/nl_NL.ISO8859-1/books/handbook/dtrace/chapter.sgml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="ISO8859-1" standalone="no"?>
+<?xml version="1.0" encoding="iso-8859-1" standalone="no"?>
 <!--
 Recently I suggested to myself that this should become a profiling
 and debugging chapter, which covers things like ktrace(1) and
diff --git a/nl_NL.ISO8859-1/books/handbook/eresources/chapter.sgml b/nl_NL.ISO8859-1/books/handbook/eresources/chapter.sgml
index ed686c23e6..3c824effc9 100644
--- a/nl_NL.ISO8859-1/books/handbook/eresources/chapter.sgml
+++ b/nl_NL.ISO8859-1/books/handbook/eresources/chapter.sgml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="ISO8859-1" standalone="no"?>
+<?xml version="1.0" encoding="iso-8859-1" standalone="no"?>
 <!--
      The FreeBSD Dutch Documentation Project
 
diff --git a/nl_NL.ISO8859-1/books/handbook/filesystems/chapter.sgml b/nl_NL.ISO8859-1/books/handbook/filesystems/chapter.sgml
index c51a4998ca..8d006bffd1 100644
--- a/nl_NL.ISO8859-1/books/handbook/filesystems/chapter.sgml
+++ b/nl_NL.ISO8859-1/books/handbook/filesystems/chapter.sgml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="ISO8859-1" standalone="no"?>
+<?xml version="1.0" encoding="iso-8859-1" standalone="no"?>
 <!--
      The FreeBSD Dutch Documentation Project
      $FreeBSD$
diff --git a/nl_NL.ISO8859-1/books/handbook/firewalls/chapter.sgml b/nl_NL.ISO8859-1/books/handbook/firewalls/chapter.sgml
index ab6f194081..02976a34be 100644
--- a/nl_NL.ISO8859-1/books/handbook/firewalls/chapter.sgml
+++ b/nl_NL.ISO8859-1/books/handbook/firewalls/chapter.sgml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="ISO8859-1" standalone="no"?>
+<?xml version="1.0" encoding="iso-8859-1" standalone="no"?>
 <!--
      The FreeBSD Dutch Documentation Project
 
diff --git a/nl_NL.ISO8859-1/books/handbook/geom/chapter.sgml b/nl_NL.ISO8859-1/books/handbook/geom/chapter.sgml
index 3ad826eb87..bcd0811b47 100644
--- a/nl_NL.ISO8859-1/books/handbook/geom/chapter.sgml
+++ b/nl_NL.ISO8859-1/books/handbook/geom/chapter.sgml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="ISO8859-1" standalone="no"?>
+<?xml version="1.0" encoding="iso-8859-1" standalone="no"?>
 <!--
      The FreeBSD Dutch Documentation Project
 
diff --git a/nl_NL.ISO8859-1/books/handbook/install/chapter.sgml b/nl_NL.ISO8859-1/books/handbook/install/chapter.sgml
index ae19459c76..d58038859d 100644
--- a/nl_NL.ISO8859-1/books/handbook/install/chapter.sgml
+++ b/nl_NL.ISO8859-1/books/handbook/install/chapter.sgml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="ISO8859-1" standalone="no"?>
+<?xml version="1.0" encoding="iso-8859-1" standalone="no"?>
 <!--
      The FreeBSD Dutch Documentation Project
 
diff --git a/nl_NL.ISO8859-1/books/handbook/introduction/chapter.sgml b/nl_NL.ISO8859-1/books/handbook/introduction/chapter.sgml
index 351f3a0cbb..1989d63d75 100644
--- a/nl_NL.ISO8859-1/books/handbook/introduction/chapter.sgml
+++ b/nl_NL.ISO8859-1/books/handbook/introduction/chapter.sgml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="ISO8859-1" standalone="no"?>
+<?xml version="1.0" encoding="iso-8859-1" standalone="no"?>
 <!--
      The FreeBSD Documentation Project
 
diff --git a/nl_NL.ISO8859-1/books/handbook/jails/chapter.sgml b/nl_NL.ISO8859-1/books/handbook/jails/chapter.sgml
index 9ae320a7b8..eff415d74e 100644
--- a/nl_NL.ISO8859-1/books/handbook/jails/chapter.sgml
+++ b/nl_NL.ISO8859-1/books/handbook/jails/chapter.sgml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="ISO8859-1" standalone="no"?>
+<?xml version="1.0" encoding="iso-8859-1" standalone="no"?>
 <!--
     The FreeBSD Dutch Documentation Project
 
diff --git a/nl_NL.ISO8859-1/books/handbook/kernelconfig/chapter.sgml b/nl_NL.ISO8859-1/books/handbook/kernelconfig/chapter.sgml
index 7add15bf7f..14f53cf3ea 100644
--- a/nl_NL.ISO8859-1/books/handbook/kernelconfig/chapter.sgml
+++ b/nl_NL.ISO8859-1/books/handbook/kernelconfig/chapter.sgml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="ISO8859-1" standalone="no"?>
+<?xml version="1.0" encoding="iso-8859-1" standalone="no"?>
 <!--
      The FreeBSD Dutch Documentation Project
 
diff --git a/nl_NL.ISO8859-1/books/handbook/l10n/chapter.sgml b/nl_NL.ISO8859-1/books/handbook/l10n/chapter.sgml
index 06cc69405f..e4fa3909f7 100644
--- a/nl_NL.ISO8859-1/books/handbook/l10n/chapter.sgml
+++ b/nl_NL.ISO8859-1/books/handbook/l10n/chapter.sgml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="ISO8859-1" standalone="no"?>
+<?xml version="1.0" encoding="iso-8859-1" standalone="no"?>
 <!--
       The FreeBSD Dutch Documentation Project
 
diff --git a/nl_NL.ISO8859-1/books/handbook/linuxemu/chapter.sgml b/nl_NL.ISO8859-1/books/handbook/linuxemu/chapter.sgml
index 4d4cf5ee95..8dd9ad1ae3 100644
--- a/nl_NL.ISO8859-1/books/handbook/linuxemu/chapter.sgml
+++ b/nl_NL.ISO8859-1/books/handbook/linuxemu/chapter.sgml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="ISO8859-1" standalone="no"?>
+<?xml version="1.0" encoding="iso-8859-1" standalone="no"?>
 <!--
      The FreeBSD Dutch Documentation Project
 
diff --git a/nl_NL.ISO8859-1/books/handbook/mac/chapter.sgml b/nl_NL.ISO8859-1/books/handbook/mac/chapter.sgml
index 2c0e9a1f7c..db82d82a8b 100644
--- a/nl_NL.ISO8859-1/books/handbook/mac/chapter.sgml
+++ b/nl_NL.ISO8859-1/books/handbook/mac/chapter.sgml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="ISO8859-1" standalone="no"?>
+<?xml version="1.0" encoding="iso-8859-1" standalone="no"?>
 <!--
      The FreeBSD Dutch Documentation Project
 
diff --git a/nl_NL.ISO8859-1/books/handbook/mail/chapter.sgml b/nl_NL.ISO8859-1/books/handbook/mail/chapter.sgml
index 1f78ebaa29..69b99343e6 100644
--- a/nl_NL.ISO8859-1/books/handbook/mail/chapter.sgml
+++ b/nl_NL.ISO8859-1/books/handbook/mail/chapter.sgml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="ISO8859-1" standalone="no"?>
+<?xml version="1.0" encoding="iso-8859-1" standalone="no"?>
 <!--
      The FreeBSD Dutch Documentation Project
 
diff --git a/nl_NL.ISO8859-1/books/handbook/mirrors/chapter.sgml b/nl_NL.ISO8859-1/books/handbook/mirrors/chapter.sgml
index 4890247ce0..687a55f10b 100644
--- a/nl_NL.ISO8859-1/books/handbook/mirrors/chapter.sgml
+++ b/nl_NL.ISO8859-1/books/handbook/mirrors/chapter.sgml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="ISO8859-1" standalone="no"?>
+<?xml version="1.0" encoding="iso-8859-1" standalone="no"?>
 <!--
      The FreeBSD Dutch Documentation Project
 
diff --git a/nl_NL.ISO8859-1/books/handbook/multimedia/chapter.sgml b/nl_NL.ISO8859-1/books/handbook/multimedia/chapter.sgml
index a8ba42614a..d96d1cfd6a 100644
--- a/nl_NL.ISO8859-1/books/handbook/multimedia/chapter.sgml
+++ b/nl_NL.ISO8859-1/books/handbook/multimedia/chapter.sgml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="ISO8859-1" standalone="no"?>
+<?xml version="1.0" encoding="iso-8859-1" standalone="no"?>
 <!--
      The FreeBSD Dutch Documentation Project
 
diff --git a/nl_NL.ISO8859-1/books/handbook/network-servers/chapter.sgml b/nl_NL.ISO8859-1/books/handbook/network-servers/chapter.sgml
index 03d82ec3fa..f5f6401c94 100644
--- a/nl_NL.ISO8859-1/books/handbook/network-servers/chapter.sgml
+++ b/nl_NL.ISO8859-1/books/handbook/network-servers/chapter.sgml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="ISO8859-1" standalone="no"?>
+<?xml version="1.0" encoding="iso-8859-1" standalone="no"?>
 <!--
      The FreeBSD Dutch Documentation Project
 
diff --git a/nl_NL.ISO8859-1/books/handbook/pgpkeys/chapter.sgml b/nl_NL.ISO8859-1/books/handbook/pgpkeys/chapter.sgml
index f7c88b2cff..cc53e34432 100644
--- a/nl_NL.ISO8859-1/books/handbook/pgpkeys/chapter.sgml
+++ b/nl_NL.ISO8859-1/books/handbook/pgpkeys/chapter.sgml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="ISO8859-1" standalone="no"?>
+<?xml version="1.0" encoding="iso-8859-1" standalone="no"?>
 <!--
      The FreeBSD Dutch Documentation Project
 
diff --git a/nl_NL.ISO8859-1/books/handbook/ports/chapter.sgml b/nl_NL.ISO8859-1/books/handbook/ports/chapter.sgml
index 2dd5d577c0..e5e87cefd2 100644
--- a/nl_NL.ISO8859-1/books/handbook/ports/chapter.sgml
+++ b/nl_NL.ISO8859-1/books/handbook/ports/chapter.sgml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="ISO8859-1" standalone="no"?>
+<?xml version="1.0" encoding="iso-8859-1" standalone="no"?>
 <!--
     The Dutch FreeBSD Documentation Project
 
diff --git a/nl_NL.ISO8859-1/books/handbook/ppp-and-slip/chapter.sgml b/nl_NL.ISO8859-1/books/handbook/ppp-and-slip/chapter.sgml
index 43c8c352a0..0fe0fa5445 100644
--- a/nl_NL.ISO8859-1/books/handbook/ppp-and-slip/chapter.sgml
+++ b/nl_NL.ISO8859-1/books/handbook/ppp-and-slip/chapter.sgml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="ISO8859-1" standalone="no"?>
+<?xml version="1.0" encoding="iso-8859-1" standalone="no"?>
 <!--
      The FreeBSD Dutch Documentation Project
 
diff --git a/nl_NL.ISO8859-1/books/handbook/preface/preface.sgml b/nl_NL.ISO8859-1/books/handbook/preface/preface.sgml
index da8b6e9dcc..4dc9195ee7 100644
--- a/nl_NL.ISO8859-1/books/handbook/preface/preface.sgml
+++ b/nl_NL.ISO8859-1/books/handbook/preface/preface.sgml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="ISO8859-1" standalone="no"?>
+<?xml version="1.0" encoding="iso-8859-1" standalone="no"?>
 <!--
      The FreeBSD Dutch Documentation Project
 
diff --git a/nl_NL.ISO8859-1/books/handbook/printing/chapter.sgml b/nl_NL.ISO8859-1/books/handbook/printing/chapter.sgml
index 5b82c8ff92..526cf75022 100644
--- a/nl_NL.ISO8859-1/books/handbook/printing/chapter.sgml
+++ b/nl_NL.ISO8859-1/books/handbook/printing/chapter.sgml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="ISO8859-1" standalone="no"?>
+<?xml version="1.0" encoding="iso-8859-1" standalone="no"?>
 <!--
      The FreeBSD Documentation Project
 
diff --git a/nl_NL.ISO8859-1/books/handbook/security/chapter.sgml b/nl_NL.ISO8859-1/books/handbook/security/chapter.sgml
index 551437a872..2f460c08ed 100644
--- a/nl_NL.ISO8859-1/books/handbook/security/chapter.sgml
+++ b/nl_NL.ISO8859-1/books/handbook/security/chapter.sgml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="ISO8859-1" standalone="no"?>
+<?xml version="1.0" encoding="iso-8859-1" standalone="no"?>
 <!--
      The FreeBSD Dutch Documentation Project
 
diff --git a/nl_NL.ISO8859-1/books/handbook/serialcomms/chapter.sgml b/nl_NL.ISO8859-1/books/handbook/serialcomms/chapter.sgml
index caf3d4287b..e568457007 100644
--- a/nl_NL.ISO8859-1/books/handbook/serialcomms/chapter.sgml
+++ b/nl_NL.ISO8859-1/books/handbook/serialcomms/chapter.sgml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="ISO8859-1" standalone="no"?>
+<?xml version="1.0" encoding="iso-8859-1" standalone="no"?>
 <!--
      The FreeBSD Dutch Documentation Project
 
diff --git a/nl_NL.ISO8859-1/books/handbook/txtfiles.ent b/nl_NL.ISO8859-1/books/handbook/txtfiles.ent
index 9fbc17ec63..9df2689fef 100644
--- a/nl_NL.ISO8859-1/books/handbook/txtfiles.ent
+++ b/nl_NL.ISO8859-1/books/handbook/txtfiles.ent
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="ISO8859-1"?>
+<?xml version="1.0" encoding="iso-8859-1"?>
 <!--
      Creates entities for each .txt screenshot that is included in the
      Handbook.
diff --git a/nl_NL.ISO8859-1/books/handbook/users/chapter.sgml b/nl_NL.ISO8859-1/books/handbook/users/chapter.sgml
index 48621602c1..08c84a3c5e 100644
--- a/nl_NL.ISO8859-1/books/handbook/users/chapter.sgml
+++ b/nl_NL.ISO8859-1/books/handbook/users/chapter.sgml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="ISO8859-1" standalone="no"?>
+<?xml version="1.0" encoding="iso-8859-1" standalone="no"?>
 <!--
      The FreeBSD Dutch Documentation Project
 
diff --git a/nl_NL.ISO8859-1/books/handbook/vinum/chapter.sgml b/nl_NL.ISO8859-1/books/handbook/vinum/chapter.sgml
index ea3a5d13e3..51d86c1036 100644
--- a/nl_NL.ISO8859-1/books/handbook/vinum/chapter.sgml
+++ b/nl_NL.ISO8859-1/books/handbook/vinum/chapter.sgml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="ISO8859-1" standalone="no"?>
+<?xml version="1.0" encoding="iso-8859-1" standalone="no"?>
 <!--
      De Vinum Volume Manager
      Door Greg Lehey (grog at lemis dot com)
diff --git a/nl_NL.ISO8859-1/books/handbook/virtualization/chapter.sgml b/nl_NL.ISO8859-1/books/handbook/virtualization/chapter.sgml
index 3cb0e60b30..2d4eecb7ff 100644
--- a/nl_NL.ISO8859-1/books/handbook/virtualization/chapter.sgml
+++ b/nl_NL.ISO8859-1/books/handbook/virtualization/chapter.sgml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="ISO8859-1" standalone="no"?>
+<?xml version="1.0" encoding="iso-8859-1" standalone="no"?>
 <!--
      The FreeBSD Documentation Project
 
diff --git a/nl_NL.ISO8859-1/books/handbook/x11/chapter.sgml b/nl_NL.ISO8859-1/books/handbook/x11/chapter.sgml
index b664833035..f5efb41cf7 100644
--- a/nl_NL.ISO8859-1/books/handbook/x11/chapter.sgml
+++ b/nl_NL.ISO8859-1/books/handbook/x11/chapter.sgml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="ISO8859-1" standalone="no"?>
+<?xml version="1.0" encoding="iso-8859-1" standalone="no"?>
 <!--
      The FreeBSD Dutch Documentation Project