hwclock: add the --compare option to the man page

The compare option for hwclock was not listed in the man page.  This
adds a simple decription of it.

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>

diff --git a/sys-utils/hwclock.8 b/sys-utils/hwclock.8
index 5c599ad76afaf520f7e9f0ed7f0ab8f49f43ef05..9b2f33431202afb3fc72c4ec05ac6fdea7890c5b 100644 (file)
--- a/sys-utils/hwclock.8
+++ b/sys-utils/hwclock.8
@@ -111,6 +111,11 @@ option based on the adjtime file. This is useful for example if you
 need to set an RTC wakeup time to distant future and want to account
 for the RTC drift.
 .TP
+.BR \-c , \ \-\-compare
+Periodically compare the Hardware Clock to the System Time and output
+the difference every 10 seconds.  This will also print the frequency
+offset and tick.
+.TP
 .BR \-h , \ \-\-help
 Display a help text and exit.
 .TP