perf help: Fix a bug during strstart() conversion
authorNamhyung Kim <namhyung@kernel.org>
Tue, 14 Nov 2017 00:15:42 +0000 (09:15 +0900)
committerArnaldo Carvalho de Melo <acme@redhat.com>
Thu, 16 Nov 2017 17:49:59 +0000 (14:49 -0300)
commit2f0af8600e82e9f950fc32908386b9c639f88d48
tree09997ef0c9f5359299164ec8e54bc744b60b840c
parent19993b82a571893e661afd90f1d77fa698785cee
perf help: Fix a bug during strstart() conversion

The commit 8e99b6d4533c changed prefixcmp() to strstart() but missed to
change the return value in some place.  It makes perf help print
annoying output even for sane config items like below:

  $ perf help
  '.root': unsupported man viewer sub key.
  ...

Reported-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Tested-by: Taeung Song <treeze.taeung@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Sihyeon Jang <uneedsihyeon@gmail.com>
Cc: kernel-team@lge.com
Link: http://lkml.kernel.org/r/20171114001542.GA16464@sejong
Fixes: 8e99b6d4533c ("tools include: Adopt strstarts() from the kernel")
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
tools/perf/builtin-help.c