Unbreak windows bot.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@299012 91177308-0d34-0410-b5e6-96231b3b80d8

test/PCH/emit-dependencies.c

 // RUN: rm -f %t.pch
 // RUN: %clang_cc1 -emit-pch -o %t.pch %S/Inputs/chain-decls1.h
 // RUN: %clang_cc1 -include-pch %t.pch -fsyntax-only -MT %s.o -dependency-file - %s | FileCheck %s
-// CHECK: Inputs/chain-decls1.h
+// CHECK: chain-decls1.h
 
 int main() {
   f();