I've re-added name:sdh (Southern Kurdish) to Kirkuk here.  
A summary of the various Kurdish languages and scripts can be found at https://en.wikipedia.org/wiki/ISO_639_macrolanguage#kur , https://en.wikipedia.org/wiki/Sorani , https://en.wikipedia.org/wiki/Kurmanji and https://en.wikipedia.org/wiki/Southern_Kurdish .  I don't know that the name used is correct; only that it was added by a local, albeit one with repeated misunderstandings of how OSM language tags work.