Run (make vendor)

Temporarily vendor opencontainers/image-spec from a fork
to fix "id" value duplication, which is detected and
refused by gojsonschema now
( https://github.com/opencontainers/image-spec/pull/750 ).

Signed-off-by: Miloslav Trmač <mitr@redhat.com>

vendor/github.com/containers/storage/drivers/devmapper/deviceset.go

@@ -2690,7 +2690,7 @@ func NewDeviceSet(root string, doInit bool, options []string, uidMaps, gidMaps [
 			devices.filesystem = val
 		case "dm.mkfsarg":
 			devices.mkfsArgs = append(devices.mkfsArgs, val)
-		case "dm.mountopt":
+		case "dm.mountopt", "devicemapper.mountopt":
 			devices.mountOptions = joinMountOptions(devices.mountOptions, val)
 		case "dm.metadatadev":
 			devices.metadataDevice = val

vendor/github.com/containers/storage/drivers/devmapper/driver.go

@@ -163,7 +163,7 @@ func (d *Driver) Remove(id string) error {
 }
 
 // Get mounts a device with given id into the root filesystem
-func (d *Driver) Get(id, mountLabel string) (string, error) {
+func (d *Driver) Get(id, mountLabel string, uidMaps, gidMaps []idtools.IDMap) (string, error) {
 	d.locker.Lock(id)
 	defer d.locker.Unlock(id)
 	mp := path.Join(d.home, "mnt", id)