Fix conflict between r174685 and r174645 (rename -fmodule-cache-path <foo> to -fmodules-cache-path=<foo>).

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@174690 91177308-0d34-0410-b5e6-96231b3b80d8

test/Modules/cxx-many-overloads.cpp

@@ -1,5 +1,5 @@
 // RUN: rm -rf %t
-// RUN: %clang_cc1 -x objective-c++ -fmodules -fmodule-cache-path %t -I %S/Inputs %s -verify
+// RUN: %clang_cc1 -x objective-c++ -fmodules -fmodules-cache-path=%t -I %S/Inputs %s -verify
 
 // expected-no-diagnostics
 @import cxx_many_overloads;