win32_unicode: fix reference in copyright  section
win32_unicode: fix reference in copyright  section

Change-Id: Ic88547a6af51e4d4f357d98da5497d280eea3e5f

jayvdb/pywikibot-core,Darkdadaah/pywikibot-core,icyflame/batman,magul/pywikibot-core,wikimedia/pywikibot-core,darthbhyrava/pywikibot-local,happy5214/pywikibot-core,smalyshev/pywikibot-core,hasteur/g13bot_tools_new,magul/pywikibot-core,hasteur/g13bot_tools_new,npdoty/pywikibot,wikimedia/pywikibot-core,jayvdb/pywikibot-core,h4ck3rm1k3/pywikibot-core,hasteur/g13bot_tools_new,happy5214/pywikibot-core,PersianWikipedia/pywikibot-core,npdoty/pywikibot,h4ck3rm1k3/pywikibot-core,Darkdadaah/pywikibot-core