Remove trailing whitespace

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21408 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm/Analysis/Trace.h

@@ -22,7 +22,7 @@
 #include <vector>
 #include <cassert>
 
-namespace llvm { 
+namespace llvm {
   class BasicBlock;
   class Function;
   class Module;