perf stat: Rename --aggr-socket to --per-socket

To make it more obvious what this option does as suggested by Andi on
LKML.

Signed-off-by: Stephane Eranian <eranian@google.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1360846649-6411-3-git-send-email-eranian@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index ded34fc..6f6ea931 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -1370,7 +1370,7 @@
 			"command to run after to the measured command"),
 	OPT_UINTEGER('I', "interval-print", &interval,
 		    "print counts at regular interval in ms (>= 100)"),
-	OPT_SET_UINT(0, "aggr-socket", &aggr_mode,
+	OPT_SET_UINT(0, "per-socket", &aggr_mode,
 		     "aggregate counts per processor socket", AGGR_SOCKET),
 	OPT_END()
 	};