perf hists: Handle field separator properly

When a field separator is given, the output format doesn't need to be
fancy like aligning to column length, coloring the percent value and so
on.  And since there's a slight difference to normal format, fix it not
to break backward compatibility.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1346640790-17197-3-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/perf/ui/stdio/hist.c b/tools/perf/ui/stdio/hist.c
index 4228b4c..882461a 100644
--- a/tools/perf/ui/stdio/hist.c
+++ b/tools/perf/ui/stdio/hist.c
@@ -319,11 +319,12 @@
 		.displacement	= displacement,
 		.ptr		= pair_hists,
 	};
+	bool color = !symbol_conf.field_sep;
 
 	if (size == 0 || size > sizeof(bf))
 		size = hpp.size = sizeof(bf);
 
-	ret = hist_entry__period_snprintf(&hpp, he, true);
+	ret = hist_entry__period_snprintf(&hpp, he, color);
 	hist_entry__sort_snprintf(he, bf + ret, size - ret, hists);
 
 	ret = fprintf(fp, "%s\n", bf);