git: 915af883221a - main - Explain the -d option.

The branch main has been updated by grog:

URL: https://cgit.FreeBSD.org/src/commit/?id=915af883221a4982e89ef878f1def0899ccac283

commit 915af883221a4982e89ef878f1def0899ccac283
Author:     Greg Lehey <grog@FreeBSD.org>
AuthorDate: 2023-09-26 05:05:16 +0000
Commit:     Greg Lehey <grog@FreeBSD.org>
CommitDate: 2023-09-26 05:05:16 +0000

    Explain the -d option.
---
 usr.sbin/makefs/makefs.8 | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/usr.sbin/makefs/makefs.8 b/usr.sbin/makefs/makefs.8
index eaa0ab2955df..18fd01adadda 100644
--- a/usr.sbin/makefs/makefs.8
+++ b/usr.sbin/makefs/makefs.8
@@ -114,7 +114,12 @@ Treat duplicate paths in an mtree manifest as warnings not error.
 Enable various levels of debugging, depending upon which bits are
 set in
 .Ar debug-mask .
-XXX: document these
+This option is intended for source debugging.
+.Ar debug-mask
+is a bit map defined in the header file
+.Ar makefs.h .
+See the source for usage, and look for defines starting with
+.Ar DEBUG_ .
 .It Fl F Ar mtree-specfile
 .Em This is almost certainly not the option you are looking for.
 To create an image from a list of files in an mtree format manifest,