[Driver] Additional fixup of NOWARN test case from r367165
[Driver] Additional fixup of NOWARN test case from r367165

Same kind of fix as in r367176, but for "RUN on line 76"
this time.

I'll ask for a post-commit review, to ensure this
matches the intention with the test added in r367165.
But I think this at least will make the buildbots a
little bit happier.

git-svn-id: ffe668792ed300d6c2daa1f6eba2e0aa28d7ec6c@367182 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-mirror/clang,llvm-mirror/clang,llvm-mirror/clang,llvm-mirror/clang,llvm-mirror/clang,llvm-mirror/clang,llvm-mirror/clang,llvm-mirror/clang,llvm-mirror/clang,llvm-mirror/clang