e2fsck: Document that the -D option finds duplicate file names

Document in the e2fsck man page that e2fsck finds duplicate filenames
only when the -D option is passed to e2fsck.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

diff --git a/e2fsck/e2fsck.8.in b/e2fsck/e2fsck.8.in
index 849c7ad..6cae577 100644 (file)
--- a/e2fsck/e2fsck.8.in
+++ b/e2fsck/e2fsck.8.in
@@ -167,6 +167,11 @@ and need to be rebuilt.  The
 option forces all directories in the filesystem to be optimized.  This can
 sometimes make them a little smaller and slightly faster to search, but
 in practice, you should rarely need to use this option.
+.IP
+The
+.B \-D
+option will detect directory entries with duplicate names in a single
+directory, which e2fsck normally does not enforce for performance reasons.
 .TP
 .BI \-E " extended_options"
 Set e2fsck extended options.  Extended options are comma