[LoopUtils] Fix typo in comment

llvm-svn: 267016
diff --git a/llvm/lib/Transforms/Utils/LoopUtils.cpp b/llvm/lib/Transforms/Utils/LoopUtils.cpp
index e158e40..2f74b11 100644
--- a/llvm/lib/Transforms/Utils/LoopUtils.cpp
+++ b/llvm/lib/Transforms/Utils/LoopUtils.cpp
@@ -823,7 +823,7 @@
   INITIALIZE_PASS_DEPENDENCY(ScalarEvolutionWrapperPass)
 }
 
-/// \brief Find string metadata for loop, if it exist return true, else return
+/// \brief Find string metadata for loop, if it exists return true, else return
 /// false.
 bool llvm::findStringMetadataForLoop(Loop *TheLoop, StringRef Name) {
   MDNode *LoopID = TheLoop->getLoopID();