[analyzer] Shorten the malloc checker’s leak message

As per Ted’s suggestion!

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178938 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Analysis/new.cpp b/test/Analysis/new.cpp
index 44ae980..8022430 100644
--- a/test/Analysis/new.cpp
+++ b/test/Analysis/new.cpp
@@ -126,7 +126,7 @@
 void testDeleteMallocked() {
   int *x = (int *)malloc(sizeof(int));
   delete x; // FIXME: Shoud detect pointer escape and keep silent after 'delete' is modeled properly.
-} // expected-warning{{Memory is never released; potential leak}}
+} // expected-warning{{Potential leak of memory pointed to by 'x'}}
 
 void testDeleteOpAfterFree() {
   int *p = (int *)malloc(sizeof(int));