Preen/update list for share/examples/sound under `MK_EXAMPLES`

- Update sources to match current installed files list. This involved
  adding and removing some example files.
- Sort the list alphabetically so it'll be easier to spot future updates.

MFC after:	1 week

1 files changed, 7 insertions, 3 deletions

diff --git a/tools/build/mk/OptionalObsoleteFiles.inc b/tools/build/mk/OptionalObsoleteFiles.inc
index c4aa49ac65d3..0243d98b37df 100644
--- a/tools/build/mk/OptionalObsoleteFiles.inc
+++ b/tools/build/mk/OptionalObsoleteFiles.inc
@@ -1899,11 +1899,15 @@ OLD_FILES+=usr/share/examples/smbfs/print/lj6l
 OLD_FILES+=usr/share/examples/smbfs/print/ljspool
 OLD_FILES+=usr/share/examples/smbfs/print/printcap.sample
 OLD_FILES+=usr/share/examples/smbfs/print/tolj
-OLD_FILES+=usr/share/examples/sound/basic.c
-OLD_FILES+=usr/share/examples/sound/ossmidi.h
-OLD_FILES+=usr/share/examples/sound/ossinit.h
 OLD_FILES+=usr/share/examples/sound/README
+OLD_FILES+=usr/share/examples/sound/kqueue.c
 OLD_FILES+=usr/share/examples/sound/midi.c
+OLD_FILES+=usr/share/examples/sound/mmap.c
+OLD_FILES+=usr/share/examples/sound/oss.h
+OLD_FILES+=usr/share/examples/sound/poll.c
+OLD_FILES+=usr/share/examples/sound/select.c
+OLD_FILES+=usr/share/examples/sound/simple.c
+OLD_FILES+=usr/share/examples/sound/sndstat_nv.c
 OLD_FILES+=usr/share/examples/sunrpc/Makefile
 OLD_FILES+=usr/share/examples/sunrpc/dir/Makefile
 OLD_FILES+=usr/share/examples/sunrpc/dir/dir.x