Fix typo.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@123041 91177308-0d34-0410-b5e6-96231b3b80d8

Makefile

@@ -48,7 +48,7 @@ CPP.Flags += -DCLANG_VENDOR='"$(CLANG_VENDOR) "'
 endif
 
 # Disable -fstrict-aliasing. Darwin disables it by default (and LLVM doesn't
-# work with it enabled with GCC), Clang/llvm-gc don't support it yet, and newer
+# work with it enabled with GCC), Clang/llvm-gcc don't support it yet, and newer
 # GCC's have false positive warnings with it on Linux (which prove a pain to
 # fix). For example:
 #   http://gcc.gnu.org/PR41874