Fix typo in comment.

Thanks Kim Gräsman!


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@188257 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/MicrosoftMangle.cpp b/lib/AST/MicrosoftMangle.cpp
index 9f4df3a..ac18db0 100644
--- a/lib/AST/MicrosoftMangle.cpp
+++ b/lib/AST/MicrosoftMangle.cpp
@@ -870,7 +870,7 @@
     std::string Name = "_GUID_" + Uuid.lower();
     std::replace(Name.begin(), Name.end(), '-', '_');
 
-    // If we had to peak through an address-of operator, treat this like we are
+    // If we had to peek through an address-of operator, treat this like we are
     // dealing with a pointer type.  Otherwise, treat it like a const reference.
     //
     // N.B. This matches up with the handling of TemplateArgument::Declaration