mirror: Support v2_1 docker registries as mirror source
mirror: Support v2_1 docker registries as mirror source

Simple fix

ironcladlou/origin,ingvagabund/origin,bparees/origin,nak3/origin,hroyrh/origin,spadgett/origin,soltysh/origin,gabemontero/origin,bparees/origin,spadgett/origin,soltysh/origin,jeremyeder/origin,jeremyeder/origin,xiuwang/origin,sdminonne/origin,sferich888/origin,mahak/origin,mkumatag/origin,dinhxuanvu/origin,pecameron/origin,ingvagabund/origin,openshift/origin,spadgett/origin,csrwng/origin,gabemontero/origin,akram/origin,sjug/origin,sferich888/origin,xiuwang/origin,mfojtik/origin,coreydaley/origin,sdminonne/origin,Miciah/origin,mkumatag/origin,sferich888/origin,hroyrh/origin,ironcladlou/origin,tnozicka/origin,openshift/origin,enj/origin,jsafrane/origin,xiuwang/origin,jsafrane/origin,tnozicka/origin,tnozicka/origin,nak3/origin,mahak/origin,dinhxuanvu/origin,spadgett/origin,pweil-/origin,deads2k/origin,dinhxuanvu/origin,pweil-/origin,sallyom/origin,jeremyeder/origin,openshift/origin,spadgett/origin,ironcladlou/origin,jsafrane/origin,deads2k/origin,jim-minter/origin,dinhxuanvu/origin,anpingli/origin,nak3/origin,JacobTanenbaum/origin,sdminonne/origin,enj/origin,dinhxuanvu/origin,mfojtik/origin,csrwng/origin,JacobTanenbaum/origin,ingvagabund/origin,JacobTanenbaum/origin,mahak/origin,pecameron/origin,coreydaley/origin,soltysh/origin,jim-minter/origin,enj/origin,csrwng/origin,sjug/origin,mkumatag/origin,jeremyeder/origin,pecameron/origin,bparees/origin,sallyom/origin,hroyrh/origin,akram/origin,Miciah/origin,anpingli/origin,deads2k/origin,Miciah/origin,sallyom/origin,sjug/origin,coreydaley/origin,mfojtik/origin,tnozicka/origin,jeremyeder/origin,jim-minter/origin,gabemontero/origin,tnozicka/origin,akram/origin,tnozicka/origin,pweil-/origin,anpingli/origin