Fixing whitespace problems

llvm-svn: 111750
diff --git a/libcxx/include/csignal b/libcxx/include/csignal
index aef1c04..959f8b8 100644
--- a/libcxx/include/csignal
+++ b/libcxx/include/csignal
@@ -25,7 +25,7 @@
     SIGINT
     SIGSEGV
     SIGTERM
- 
+
 namespace std
 {