nanobsd: Fix the p flag

Fix the "p" flag in the manual page.
While here, add the flag to the usage instructions.

Reviewed by:	imp
Approved by:	emaste (mentor)
Fixes:	90593b1bdb80 ("nanobsd: Expose do_image_prep on command line")
Differential Revision:	https://reviews.freebsd.org/D52508

2 files changed, 3 insertions, 2 deletions

diff --git a/share/man/man8/nanobsd.8 b/share/man/man8/nanobsd.8
index 8a1f44af6900..44def2503b84 100644
--- a/share/man/man8/nanobsd.8
+++ b/share/man/man8/nanobsd.8
@@ -77,7 +77,7 @@ This suppresses the normal cleanup work done before the
 .Cm buildworld
 stage and adds -DNO_CLEAN to the make command line
 used for each build stage (world and kernel).
-.It Fl r
+.It Fl p
 Don't prepare the image.
 Skip running of the customization and early customization scripts for
 incremental image refinement from world, kernel, or packages.
diff --git a/tools/tools/nanobsd/defaults.sh b/tools/tools/nanobsd/defaults.sh
index 59ae8d92f4af..4c4323c4bd87 100755
--- a/tools/tools/nanobsd/defaults.sh
+++ b/tools/tools/nanobsd/defaults.sh
@@ -886,7 +886,7 @@ pprint ( ) (
 
 usage ( ) {
 	(
-	echo "Usage: $0 [-BbfhIiKknqvWwX] [-c config_file]"
+	echo "Usage: $0 [-BbfhIiKknpqvWwX] [-c config_file]"
 	echo "	-B	suppress installs (both kernel and world)"
 	echo "	-b	suppress builds (both kernel and world)"
 	echo "	-c	specify config file"
@@ -897,6 +897,7 @@ usage ( ) {
 	echo "	-K	suppress installkernel"
 	echo "	-k	suppress buildkernel"
 	echo "	-n	add -DNO_CLEAN to buildworld, buildkernel, etc"
+	echo "	-p	suppress preparing the image"
 	echo "	-q	make output more quiet"
 	echo "	-v	make output more verbose"
 	echo "	-W	suppress installworld"