fix file headers.

llvm-svn: 75437
diff --git a/clang/lib/Index/Entity.cpp b/clang/lib/Index/Entity.cpp
index c1d8702..2620f88 100644
--- a/clang/lib/Index/Entity.cpp
+++ b/clang/lib/Index/Entity.cpp
@@ -1,4 +1,4 @@
-//===--- Entity.h - Cross-translation-unit "token" for decls ----*- C++ -*-===//
+//===--- Entity.cpp - Cross-translation-unit "token" for decls ------------===//
 //
 //                     The LLVM Compiler Infrastructure
 //