src: fix build/header_guard cpplint warnings

bnoordhuis · Myles Borins · commit c8f78a26829c · 2016-07-14T12:45:06.000-07:00
PR-URL: #7462 Reviewed-By: Trevor Norris <trev.norris@gmail.com>
diff --git a/src/node_version.h b/src/node_version.h
@@ -54,4 +54,4 @@
  */
 #define NODE_MODULE_VERSION 46 /* Node.js v4.0.0 */
 
-#endif  /* SRC_NODE_VERSION_H_ */
+#endif  // SRC_NODE_VERSION_H_
