pull: Allow pulling multiple specific refs
pull: Allow pulling multiple specific refs

gatispaeglis/ostree,GNOME/ostree,leandrosansilva/ostree,gatispaeglis/ostree,GNOME/ostree,resin-io/ostree,sujitfulse/ostree,gatispaeglis/ostree,sujitfulse/ostree,sujitfulse/ostree,leandrosansilva/ostree,sujitfulse/ostree,GNOME/ostree,gatispaeglis/ostree,resin-io/ostree,resin-io/ostree,resin-io/ostree,sujitfulse/ostree,leandrosansilva/ostree,leandrosansilva/ostree,leandrosansilva/ostree,GNOME/ostree,gatispaeglis/ostree,resin-io/ostree,GNOME/ostree,gatispaeglis/ostree