fixes #2743 - use public OC_User::getDisplayName instead of OC_User::determineDisplayName
fixes #2743 - use public OC_User::getDisplayName instead of OC_User::determineDisplayName

endsguy/server,andreas-p/nextcloud-server,pollopolea/core,xx621998xx/server,owncloud/core,pixelipo/server,sharidas/core,andreas-p/nextcloud-server,andreas-p/nextcloud-server,IljaN/core,Ardinis/server,pmattern/server,bluelml/core,xx621998xx/server,pixelipo/server,bluelml/core,michaelletzgus/nextcloud-server,pixelipo/server,michaelletzgus/nextcloud-server,lrytz/core,lrytz/core,nextcloud/server,lrytz/core,cernbox/core,cernbox/core,cernbox/core,xx621998xx/server,owncloud/core,sharidas/core,bluelml/core,whitekiba/server,pmattern/server,endsguy/server,nextcloud/server,sharidas/core,andreas-p/nextcloud-server,jbicha/server,owncloud/core,IljaN/core,IljaN/core,bluelml/core,whitekiba/server,sharidas/core,IljaN/core,nextcloud/server,michaelletzgus/nextcloud-server,pmattern/server,pollopolea/core,pollopolea/core,pixelipo/server,xx621998xx/server,pollopolea/core,michaelletzgus/nextcloud-server,owncloud/core,Ardinis/server,Ardinis/server,jbicha/server,lrytz/core,endsguy/server,whitekiba/server,phil-davis/core,andreas-p/nextcloud-server,bluelml/core,pixelipo/server,pmattern/server,endsguy/server,whitekiba/server,owncloud/core,whitekiba/server,xx621998xx/server,Ardinis/server,pmattern/server,sharidas/core,lrytz/core,pollopolea/core,IljaN/core,jbicha/server,Ardinis/server,cernbox/core,cernbox/core,jbicha/server,nextcloud/server,endsguy/server,jbicha/server