Correct comments.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@93999 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/CastToStructChecker.cpp b/lib/Analysis/CastToStructChecker.cpp
index a366342..219c09f 100644
--- a/lib/Analysis/CastToStructChecker.cpp
+++ b/lib/Analysis/CastToStructChecker.cpp
@@ -8,7 +8,7 @@
 //===----------------------------------------------------------------------===//
 //
 // This files defines CastToStructChecker, a builtin checker that checks for
-// assignment of a fixed address to a pointer.
+// cast from non-struct pointer to struct pointer.
 // This check corresponds to CWE-588.
 //
 //===----------------------------------------------------------------------===//