perf tests: Fix attr watermark field name typo

Currently the 'watermark' field is coded as 'watermask'.

As the type is global through the framework and tests, the typo spawned
no error.

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
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/1352130579-13451-4-git-send-email-jolsa@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/perf/tests/attr.c b/tools/perf/tests/attr.c
index 1389d69..6fa84b7 100644
--- a/tools/perf/tests/attr.c
+++ b/tools/perf/tests/attr.c
@@ -110,7 +110,7 @@
 	WRITE_ASS(inherit_stat,   "d");
 	WRITE_ASS(enable_on_exec, "d");
 	WRITE_ASS(task,           "d");
-	WRITE_ASS(watermask,      "d");
+	WRITE_ASS(watermark,      "d");
 	WRITE_ASS(precise_ip,     "d");
 	WRITE_ASS(mmap_data,      "d");
 	WRITE_ASS(sample_id_all,  "d");