Disable this test on win32. My "sleep 2" trick didn't seem to work

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139729 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/PCH/modified-header-error.c b/test/PCH/modified-header-error.c
index de85fe7..34f04bf 100644
--- a/test/PCH/modified-header-error.c
+++ b/test/PCH/modified-header-error.c
@@ -3,10 +3,11 @@
 // RUN: echo > %t.dir/header2.h
 // RUN: cp %s %t.dir/t.c
 // RUN: %clang_cc1 -x c-header %t.dir/header1.h -emit-pch -o %t.pch
-// RUN: sleep 2
 // RUN: echo >> %t.dir/header2.h
 // RUN: %clang_cc1 %t.dir/t.c -include-pch %t.pch -fsyntax-only 2>&1 | FileCheck %s
 
 #include "header2.h"
 
 // CHECK: fatal error: file {{.*}} has been modified since the precompiled header was built
+// DISABLE: win32
+