Fix comment-rulers.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149922 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Support/DataStream.cpp b/lib/Support/DataStream.cpp
index fa8edc7..6b4cb64 100644
--- a/lib/Support/DataStream.cpp
+++ b/lib/Support/DataStream.cpp
@@ -1,4 +1,4 @@
-//===--- llvm/Support/DataStream.cpp - Lazy streamed Data               ---===//
+//===--- llvm/Support/DataStream.cpp - Lazy streamed data -----------------===//
 //
 //                     The LLVM Compiler Infrastructure
 //