hwclock: add -D to the man page

Addresses: https://bugzilla.redhat.com/show_bug.cgi?id=1244609
Signed-off-by: Karel Zak <kzak@redhat.com>

diff --git a/sys-utils/hwclock.8.in b/sys-utils/hwclock.8.in
index ddf42a27fcb892ccf00c233c421631ad1af71594..dec79020ad29073888536f28e036afa17c369019 100644 (file)
--- a/sys-utils/hwclock.8.in
+++ b/sys-utils/hwclock.8.in
@@ -310,7 +310,7 @@ the enter key is pressed.
 .RE
 .
 .TP
-.B \-\-debug
+.BR \-D ", " \-\-debug
 Display a lot of information about what
 .B \%hwclock
 is doing internally.  Some of its functions are complex and this output