[BUGFIX] do not add separator if interwiki links are on one line
[BUGFIX] do not add separator if interwiki links are on one line

added missing check for
site.language() in site.family.interwiki_on_one_line
follow-up for f706e8b89885ad8510fe17f8c87bed2c7f6e0db0

Change-Id: Idd5b80a1c7046dc4a299b948246e40a3eb682b72

h4ck3rm1k3/pywikibot-core,darthbhyrava/pywikibot-local,wikimedia/pywikibot-core,magul/pywikibot-core,xZise/pywikibot-core,happy5214/pywikibot-core,npdoty/pywikibot,PersianWikipedia/pywikibot-core,hasteur/g13bot_tools_new,magul/pywikibot-core,Darkdadaah/pywikibot-core,hasteur/g13bot_tools_new,VcamX/pywikibot-core,hasteur/g13bot_tools_new,trishnaguha/pywikibot-core,h4ck3rm1k3/pywikibot-core,icyflame/batman,wikimedia/pywikibot-core,npdoty/pywikibot,jayvdb/pywikibot-core,valhallasw/pywikibot-core,Darkdadaah/pywikibot-core,TridevGuha/pywikibot-core,smalyshev/pywikibot-core,jayvdb/pywikibot-core,emijrp/pywikibot-core,happy5214/pywikibot-core