Remove trailing whitespace

llvm-svn: 21427
diff --git a/llvm/lib/Transforms/Utils/DemoteRegToStack.cpp b/llvm/lib/Transforms/Utils/DemoteRegToStack.cpp
index 74d618c..ecd92f7 100644
--- a/llvm/lib/Transforms/Utils/DemoteRegToStack.cpp
+++ b/llvm/lib/Transforms/Utils/DemoteRegToStack.cpp
@@ -1,12 +1,12 @@
 //===- DemoteRegToStack.cpp - Move a virtual register to the stack --------===//
-// 
+//
 //                     The LLVM Compiler Infrastructure
 //
 // This file was developed by the LLVM research group and is distributed under
 // the University of Illinois Open Source License. See LICENSE.TXT for details.
-// 
+//
 //===----------------------------------------------------------------------===//
-// 
+//
 // This file provide the function DemoteRegToStack().  This function takes a
 // virtual register computed by an Instruction and replaces it with a slot in
 // the stack frame, allocated via alloca. It returns the pointer to the