Refrase comments.

llvm-svn: 107607
diff --git a/clang/lib/Index/Entity.cpp b/clang/lib/Index/Entity.cpp
index 06e22bbd..8178fbe 100644
--- a/clang/lib/Index/Entity.cpp
+++ b/clang/lib/Index/Entity.cpp
@@ -132,9 +132,9 @@
 }
 
 Entity EntityGetter::VisitTypeDecl(TypeDecl *D) {
-  // Make TypeDecl an invalid Entity. Although in C++ class name has external
-  // linkage, usually the definition of the class is available in the same
-  // translation unit when it's needed. So we make all of them invalid Entity.
+  // Although in C++ class name has external linkage, usually the definition of
+  // the class is available in the same translation unit when it's needed. So we
+  // make all of them invalid Entity.
   return Entity();
 }