fix missing space in test

Created using spr 1.3.6-beta.1

Author: arichardson

clang/test/Driver/msp430-char.c

@@ -1,4 +1,4 @@
 /// Check that char is unsigned by default.
-// RUN: %clang -### %s --target=msp430 -c 2>&1 | FileCheck%s
+// RUN: %clang -### %s --target=msp430 -c 2>&1 | FileCheck %s
 // CHECK: "-cc1" "-triple" "msp430"
 // CHECK-SAME: "-fno-signed-char"