perf: Rename 'perf trace' to 'perf script'

Free the perf trace name space and rename the trace to 'script' which is a
better match for the scripting engine.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
diff --git a/tools/perf/builtin-lock.c b/tools/perf/builtin-lock.c
index 821c158..8452a2a 100644
--- a/tools/perf/builtin-lock.c
+++ b/tools/perf/builtin-lock.c
@@ -982,9 +982,9 @@
 				usage_with_options(report_usage, report_options);
 		}
 		__cmd_report();
-	} else if (!strcmp(argv[0], "trace")) {
-		/* Aliased to 'perf trace' */
-		return cmd_trace(argc, argv, prefix);
+	} else if (!strcmp(argv[0], "script")) {
+		/* Aliased to 'perf script' */
+		return cmd_script(argc, argv, prefix);
 	} else if (!strcmp(argv[0], "info")) {
 		if (argc) {
 			argc = parse_options(argc, argv,