vnc_display_print_local_addr() leaks the Error object when
qio_channel_socket_get_local_address() fails. Seems unlikely. Called
when we create a VNC display with vnc_display_open(). Plug the leak
by passing NULL to ignore the error.
Cc: Daniel P. Berrange <berrange@redhat.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20200630090351.1247703-12-armbru@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>