adding another language

Is one line of code in /lib/sfp-like-box.php all that has to be done to include another language into this plugin?

I’ve added:
<option <?php selected(( $local == 'hr_HR') ? 1 : 0);?> value="hr_HR" >Croatian</option>
and now I see the “Like button” in Croatian “Sviđa mi se. Sviđa ti se ovo.” which is good. The stream descriptions however will be shown in the language that each visitor has set in his fb config, right?

If it’s just that one line, would it be possible for you to add the line to the official plugin, so my changes won’t get lost whenever I update the plugin? And why not add all known languages from FacebookLocales.xml?

http://wordpress.org/plugins/simple-facebook-plugin/