💄 Fix cpplint warnings.

common/node_bindings_linux.cc

@@ -21,4 +21,4 @@ NodeBindings* NodeBindings::Create(bool is_browser) {
   return new NodeBindingsLinux(is_browser);
 }
 
-}  // namespace at
+}  // namespace atom

script/cpplint.py

@@ -14,6 +14,7 @@ IGNORE_FILES = [
   'browser/ui/cocoa/atom_menu_controller.h',
   'browser/ui/cocoa/nsalert_synchronous_sheet.h',
   'browser/ui/gtk/gtk_custom_menu.cc',
+  'browser/ui/gtk/gtk_custom_menu_item.cc',
   'common/api/api_messages.cc',
   'common/api/api_messages.h',
   'common/atom_version.h',