watch: inform about optional argument for -d switch

The -d, --differences switch(s) can use optional argument that was
not documented earlier.

Reported-By: Marian Sigler <m@qjym.de>
Bug-Debian: http://bugs.debian.org/597021
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
This commit is contained in:
Sami Kerola 2012-02-11 21:00:05 +01:00
parent 1af18c260a
commit 529fa2e615
2 changed files with 6 additions and 3 deletions

View File

@ -15,8 +15,10 @@ program is run every 2 seconds.
will run until interrupted. will run until interrupted.
.SH OPTIONS .SH OPTIONS
.TP .TP
\fB\-d\fR, \fB\-\-differences\fR \fB\-d\fR, \fB\-\-differences\fR [\fIpermanent\fR]
Highlight the differences between successive updates. Highlight the differences between successive updates. Option will read
optional argument that changes highlight to be permanent, allowing to see what
has changed at least once since first iteration.
.TP .TP
\fB\-n\fR, \fB\-\-interval\fR \fIseconds\fR \fB\-n\fR, \fB\-\-interval\fR \fIseconds\fR
Specify update interval. The command will not allow quicker than 0.1 second Specify update interval. The command will not allow quicker than 0.1 second

View File

@ -67,7 +67,8 @@ static void __attribute__ ((__noreturn__))
fputs(USAGE_OPTIONS, out); fputs(USAGE_OPTIONS, out);
fputs(_(" -b, --beep beep if command has a non-zero exit\n" fputs(_(" -b, --beep beep if command has a non-zero exit\n"
" -c, --color interpret ANSI color sequences\n" " -c, --color interpret ANSI color sequences\n"
" -d, --differences highlight changes between updates\n" " -d, --differences[=<permanent>]\n"
" highlight changes between updates\n"
" -e, --errexit exit if command has a non-zero exit\n" " -e, --errexit exit if command has a non-zero exit\n"
" -n, --interval <secs> seconds to wait between updates\n" " -n, --interval <secs> seconds to wait between updates\n"
" -p, --precise attempt run command in precise intervals\n" " -p, --precise attempt run command in precise intervals\n"