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-rw-r--r--test/Frontend/rewrite-includes-messages.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/test/Frontend/rewrite-includes-messages.c b/test/Frontend/rewrite-includes-messages.c
index f93fe72e58d5b..a3a5cb2eae6c6 100644
--- a/test/Frontend/rewrite-includes-messages.c
+++ b/test/Frontend/rewrite-includes-messages.c
@@ -1,6 +1,6 @@
// RUN: %clang_cc1 -E -frewrite-includes %s -I%S/Inputs/ | %clang_cc1 -Wall -fsyntax-only -Wunused-macros -x c - 2>&1 > %t.1
// RUN: %clang_cc1 -I%S/Inputs/ -Wall -Wunused-macros -fsyntax-only %s 2>&1 > %t.2
-// RUN: diff %t.1 %t.2 -u
+// RUN: diff -u %t.1 %t.2
// expected-no-diagnostics
#include "rewrite-includes-messages.h"