Fix cocoapods spec warning.
Fix cocoapods spec warning.

appsquickly/XcodeEditor,cezheng/XcodeEditor,appsquickly/XcodeEditor,appsquickly/XcodeEditor,khanhtbh/XcodeEditor,andyvand/XcodeEditor,service2media/XcodeEditor,JoelGerboreLaser/XcodeEditor,khanhtbh/XcodeEditor,cezheng/XcodeEditor,iosdevzone/XcodeEditor,JoelGerboreLaser/XcodeEditor