language code for Basque should be changed

Hi,
I have used your plugin and noticed that the language code that it sets by default for Basque is eu_ES, when WordPress has chosen “eu” as you can check here: http://wpcentral.io/internationalization/

As a result, having WP installed in Basque from scratch, your plugin creates translations with the wrong language code, which are not recognised by WP and are not loaded.

Could you change your language code to “eu”, please?

https://ww.wp.xz.cn/plugins/codestyling-localization/