[tip:perf/urgent] perf kallsyms: Fix the usage on the man page

[tip-bot for Sangwon Hong]

Commit-ID:  f6d3f35e006496c282ccbb67494d90b04f6cba10
Gitweb:     https://git.kernel.org/tip/f6d3f35e006496c282ccbb67494d90b04f6cba10
Author:     Sangwon Hong <qpakzk@xxxxxxxxx>
AuthorDate: Mon, 12 Feb 2018 04:37:44 +0900
Committer:  Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Mon, 5 Mar 2018 11:48:37 -0300

perf kallsyms: Fix the usage on the man page

First, all man pages highlight only perf and subcommands except 'perf
kallsyms', which includes the full usage. Fix it for commands to
monopolize underlines.

Second, options can be ommited when executing 'perf kallsyms', so add
square brackets between <option>.

Signed-off-by: Sangwon Hong <qpakzk@xxxxxxxxx>
Acked-by: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Taeung Song <treeze.taeung@xxxxxxxxx>
Link: http://lkml.kernel.org/r/1518377864-20353-1-git-send-email-qpakzk@xxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
 tools/perf/Documentation/perf-kallsyms.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/Documentation/perf-kallsyms.txt b/tools/perf/Documentation/perf-kallsyms.txt
index 954ea9e21236..cf9f4040ea5c 100644
--- a/tools/perf/Documentation/perf-kallsyms.txt
+++ b/tools/perf/Documentation/perf-kallsyms.txt
@@ -8,7 +8,7 @@ perf-kallsyms - Searches running kernel for symbols
 SYNOPSIS
 --------
 [verse]
-'perf kallsyms <options> symbol_name[,symbol_name...]'
+'perf kallsyms' [<options>] symbol_name[,symbol_name...]
 
 DESCRIPTION
 -----------