First check in. Modified a comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191491 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/Hello/Hello.cpp b/lib/Transforms/Hello/Hello.cpp
index 9f2343b..9251783 100644
--- a/lib/Transforms/Hello/Hello.cpp
+++ b/lib/Transforms/Hello/Hello.cpp
@@ -52,7 +52,7 @@
       return false;
     }
 
-    // We don't modify the program, so we preserve all analyses
+    // We don't modify the program, so we preserve all analyses.
     virtual void getAnalysisUsage(AnalysisUsage &AU) const {
       AU.setPreservesAll();
     }