From: Arnaldo Carvalho de Melo <a...@redhat.com>

Cc: Adrian Hunter <adrian.hun...@intel.com>
Cc: Jiri Olsa <jo...@kernel.org>
Cc: Namhyung Kim <namhy...@kernel.org>
Cc: Wang Nan <wangn...@huawei.com>
Link: http://lkml.kernel.org/n/tip-4j67nvlfwbnkg85b969ew...@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com>
---
 tools/perf/util/sort.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index de620f7f40f4..8b54ede7ec1f 100644
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -28,7 +28,15 @@ int          sort__has_socket = 0;
 int            sort__has_thread = 0;
 enum sort_mode sort__mode = SORT_MODE__NORMAL;
 
-
+/*
+ * Replaces all occurrences of a char used with the:
+ *
+ * -t, --field-separator
+ *
+ * option, that uses a special separator character and don't pad with spaces,
+ * replacing all occurances of this separator in symbol names (and other
+ * output) with a '.' character, that thus it's the only non valid separator.
+*/
 static int repsep_snprintf(char *bf, size_t size, const char *fmt, ...)
 {
        int n;
-- 
2.5.0

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