[Sanitizer] update style checker script and fix namespace style warnings

llvm-svn: 173910
diff --git a/compiler-rt/lib/tsan/rtl/tsan_interface_java.cc b/compiler-rt/lib/tsan/rtl/tsan_interface_java.cc
index e425c75..ee12001 100644
--- a/compiler-rt/lib/tsan/rtl/tsan_interface_java.cc
+++ b/compiler-rt/lib/tsan/rtl/tsan_interface_java.cc
@@ -152,7 +152,7 @@
   return 0;
 }
 
-}  // namespace __tsan {
+}  // namespace __tsan
 
 #define SCOPED_JAVA_FUNC(func) \
   ThreadState *thr = cur_thread(); \