Tidy up. Trailing whitespace.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156602 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/MC/MCAsmBackend.cpp b/lib/MC/MCAsmBackend.cpp
index 0b2e4ae..2e447b0 100644
--- a/lib/MC/MCAsmBackend.cpp
+++ b/lib/MC/MCAsmBackend.cpp
@@ -39,7 +39,7 @@
     { "FK_SecRel_4", 0, 32, 0 },
     { "FK_SecRel_8", 0, 64, 0 }
   };
-  
+
   assert((size_t)Kind <= sizeof(Builtins) / sizeof(Builtins[0]) &&
          "Unknown fixup kind");
   return Builtins[Kind];