Fix cpplint whitespace/comments issues

Change-Id: Iae286862c85fb8fd8901eae1204cd6d271d69496
diff --git a/compiler/llvm/compiler_llvm.h b/compiler/llvm/compiler_llvm.h
index 77841d8..20934ab 100644
--- a/compiler/llvm/compiler_llvm.h
+++ b/compiler/llvm/compiler_llvm.h
@@ -97,7 +97,7 @@
 };
 
 
-} // namespace llvm
-} // namespace art
+}  // namespace llvm
+}  // namespace art
 
 #endif  // ART_COMPILER_LLVM_COMPILER_LLVM_H_