perf lock: Change to synthesize task events

With -t/--threads option, it needs to display task names so synthesize
task related events at the beginning.

Signed-off-by: Namhyung Kim <[e-mail]>
Acked-by: Ian Rogers <[e-mail]>
Cc: Boqun Feng <[e-mail]>
Cc: Davidlohr Bueso <[e-mail]>
Cc: Jiri Olsa <[e-mail]>
Cc: Peter Zijlstra <[e-mail]>
Cc: Waiman Long <[e-mail]>
Cc: Will Deacon <[e-mail]>
Fixes: 7c3bcbdf449f ("perf lock: Add -t/--thread option for report")
Link: http://lore.kernel.org/lkml/[e-mail]
Signed-off-by: Arnaldo Carvalho de Melo <[e-mail]>

tools/perf/builtin-lock.c

···
 static int __cmd_record(int argc, const char **argv)
 {
 	const char *record_args[] = {
-		"record", "-R", "-m", "1024", "-c", "1", "--synth", "no",
+		"record", "-R", "-m", "1024", "-c", "1", "--synth", "task",
 	};
 	unsigned int rec_argc, i, j, ret;
 	const char **rec_argv;