perf stat: Rename 'is_pipe' argument to 'attrs' in perf_stat_synthesize_config()

The attrs name makes more sense.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20180830063252.23729-10-jolsa@kernel.orgSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/builtin-stat.c

@@ -402,11 +402,11 @@ static void workload_exec_failed_signal(int signo __maybe_unused, siginfo_t *inf
 	workload_exec_errno = info->si_value.sival_int;
 }
 
-static int perf_stat_synthesize_config(bool is_pipe)
+static int perf_stat_synthesize_config(bool attrs)
 {
 	int err;
 
-	if (is_pipe) {
+	if (attrs) {
 		err = perf_event__synthesize_attrs(NULL, evsel_list,
 						   process_synthesized_event);
 		if (err < 0) {
@@ -418,7 +418,7 @@ static int perf_stat_synthesize_config(bool is_pipe)
 	err = perf_event__synthesize_extra_attr(NULL,
 						evsel_list,
 						process_synthesized_event,
-						is_pipe);
+						attrs);
 
 	err = perf_event__synthesize_thread_map2(NULL, evsel_list->threads,
 						process_synthesized_event,