[IR] Strip trailing whitespace. NFC

llvm-svn: 336194
diff --git a/llvm/lib/IR/DebugInfo.cpp b/llvm/lib/IR/DebugInfo.cpp
index b741cc9..77585ee 100644
--- a/llvm/lib/IR/DebugInfo.cpp
+++ b/llvm/lib/IR/DebugInfo.cpp
@@ -669,10 +669,10 @@
     SmallVector<MDNode *, 8> Ops;
     for (MDNode *Op : NMD.operands())
       Ops.push_back(remap(Op));
- 
+
     if (!Changed)
       continue;
- 
+
     NMD.clearOperands();
     for (auto *Op : Ops)
       if (Op)