Alexandre Flament 5439dd5fb1 [fix] checker: fix image fetch
Since https://github.com/searxng/searxng/pull/354
the searx.network.stream(...) returns a tuple

This commits update the checker code according to
this function signature change.
2022-01-22 16:11:42 +01:00
..
2022-01-22 16:11:42 +01:00