perf report: Fix usage string

perf report does not take a command from command line.

Cc: Ingo Molnar <mingo@elte.hu>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1323703017-6060-8-git-send-email-namhyung@gmail.comSigned-off-by: NNamhyung Kim <namhyung@gmail.com>
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/builtin-report.c

@@ -432,7 +432,7 @@ int cmd_report(int argc, const char **argv, const char *prefix __used)
 {
 	char callchain_default_opt[] = "fractal,0.5,callee";
 	const char * const report_usage[] = {
-		"perf report [<options>] <command>",
+		"perf report [<options>]",
 		NULL
 	};
 	struct perf_report report = {