fix typo Duncan noticed


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50699 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/Scalar/JumpThreading.cpp b/lib/Transforms/Scalar/JumpThreading.cpp
index 1a2ec99..991b111 100644
--- a/lib/Transforms/Scalar/JumpThreading.cpp
+++ b/lib/Transforms/Scalar/JumpThreading.cpp
@@ -445,7 +445,7 @@
     }
     
     // Alternatively, I must be a call or invoke that returns multiple retvals.
-    // We can't use 'DemoteRegToStack' because the at will create loads and
+    // We can't use 'DemoteRegToStack' because that will create loads and
     // stores of aggregates which is not valid yet.  If I is a call, we can just
     // pull all the getresult instructions up to this block.  If I is an invoke,
     // we are out of luck.