Fix whitespace.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121382 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Support/SourceMgr.cpp b/lib/Support/SourceMgr.cpp
index f53169a..1f62068 100644
--- a/lib/Support/SourceMgr.cpp
+++ b/lib/Support/SourceMgr.cpp
@@ -182,7 +182,7 @@
     DiagHandler(GetMessage(Loc, Msg, Type, ShowLine), DiagContext);
     return;
   }
-  
+
   raw_ostream &OS = errs();
 
   int CurBuf = FindBufferContainingLoc(Loc);