test/Coverage/html-diagnostics.c: Do not make hit "CHECK: Dereference of null pointer" to the output itself!

llvm-svn: 116782

clang/test/Coverage/html-diagnostics.c

@@ -3,7 +3,10 @@
 // RUN: cat %t/*.html | FileCheck %s
 
 // CHECK: <h3>Annotated Source Code</h3>
-// CHECK: Dereference of null pointer
+
+// Without tweaking expr, the expr would hit to the line below
+// emitted to the output as comment.
+// CHECK: {{[D]ereference of null pointer}}
 
 void f0(int x) {
   int *p = &x;