perf hists browser: Fix children overhead dump

When perf report runs on TUI, 'P' key dumps current screen to a file but
it incorrectly displayed children overhead (as same of self overhead).
This was because it fetched the value from self stats.

Signed-off-by: Namhyung Kim <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Frederic Weisbecker <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Paul Mackerras <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

Author: namhyung

tools/perf/ui/hist.c

@@ -304,7 +304,7 @@ static int hpp__color_##_type(struct perf_hpp_fmt *fmt,				\
 static int hpp__entry_##_type(struct perf_hpp_fmt *fmt,				\
 			      struct perf_hpp *hpp, struct hist_entry *he) 	\
 {										\
-	return hpp__fmt_acc(fmt, hpp, he, he_get_##_field, " %*.2f%%",		\
+	return hpp__fmt_acc(fmt, hpp, he, he_get_acc_##_field, " %*.2f%%",	\
 			    hpp_entry_scnprintf, true);				\
 }