Fixing whitespace problems

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@111750 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/cstring b/include/cstring
index b2305a3..06521d1 100644
--- a/include/cstring
+++ b/include/cstring
@@ -17,7 +17,7 @@
 Macros:
 
     NULL
- 
+
 namespace std
 {