PR4142: Add %m format string specifier.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@72726 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Sema/format-string-percentm.c b/test/Sema/format-string-percentm.c
new file mode 100644
index 0000000..f531372
--- /dev/null
+++ b/test/Sema/format-string-percentm.c
@@ -0,0 +1,6 @@
+// RUN: clang-cc -fsyntax-only -verify %s -triple i686-pc-linux-gnu
+
+int printf(char const*,...);
+void percentm(void) {
+  printf("%m");
+}