Fix a typo Duncan noticed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97735 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
index 6264968..023e486 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
@@ -4871,7 +4871,7 @@
 
 namespace {
 
-/// RAUWUpdateListner - Helper for ReplaceAllUsesWith - When the node
+/// RAUWUpdateListener - Helper for ReplaceAllUsesWith - When the node
 /// pointed to by a use iterator is deleted, increment the use iterator
 /// so that it doesn't dangle.
 ///