The latter option should hide, the official API is the --external.
This patch tests the option, thus completing the deprecation.
The legacy -x|--ext-unix-sk test is still in zdtm/static/socket-ext.
travis-ci: success for unix: Test the --external instead of --ext-unix-sk
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>
This option cannot be tested using classic zdtm tests as it implies
some data created before restore and passed through criu restore down
to the restored process (descriptor in our case).
So add inhfd_test class that creates such.
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>