[sanitizer] fix code style

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@189474 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/msan/msan.h b/lib/msan/msan.h
index 5d5ca57..9cf33f0 100644
--- a/lib/msan/msan.h
+++ b/lib/msan/msan.h
@@ -87,12 +87,12 @@
         common_flags()->fast_unwind_on_malloc)
 
 class ScopedThreadLocalStateBackup {
-public:
+ public:
   ScopedThreadLocalStateBackup() { Backup(); }
   ~ScopedThreadLocalStateBackup() { Restore(); }
   void Backup();
   void Restore();
-private:
+ private:
   u64 va_arg_overflow_size_tls;
 };
 }  // namespace __msan