Comment clean-ups. No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61354 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/Scalar/GVN.cpp b/lib/Transforms/Scalar/GVN.cpp
index 6087fd5..cd2dcf5 100644
--- a/lib/Transforms/Scalar/GVN.cpp
+++ b/lib/Transforms/Scalar/GVN.cpp
@@ -666,7 +666,7 @@
 }
 
 //===----------------------------------------------------------------------===//
-//                         GVN Pass
+//                                GVN Pass
 //===----------------------------------------------------------------------===//
 
 namespace {
@@ -1353,9 +1353,7 @@
   return false;
 }
 
-// GVN::runOnFunction - This is the main transformation entry point for a
-// function.
-//
+/// runOnFunction - This is the main transformation entry point for a function.
 bool GVN::runOnFunction(Function& F) {
   MD = &getAnalysis<MemoryDependenceAnalysis>();
   DT = &getAnalysis<DominatorTree>();
@@ -1602,7 +1600,7 @@
   return Changed || toSplit.size();
 }
 
-// iterateOnFunction - Executes one iteration of GVN
+/// iterateOnFunction - Executes one iteration of GVN
 bool GVN::iterateOnFunction(Function &F) {
   cleanupGlobalSets();