Script finish only with ctrl+C

[neylsongularte]

failed to seed tile z20,x0,y0: wms request for tileset test returned an unsupported format:

msWMSLoadGetMapParams(): WMS server error. At least one layer name required in LAYERS.

aborting seed as 100.0% of the last 1000 requests failed

^CSIGINT received, waiting for threads to finish press ctrl-C again to force terminate, you might end up with locked tiles