Change log level for SFTP Subsystem

[rediculum]

This attribute is missing in order to define another log level of the sftp subsystem (default is VERBOSE)

[chris-rock]

@rediculum would you like to add a PR to make it happen?

[rediculum]

Done
PR #200

[artem-sidorenko]

Resolved via #200

[rediculum]

Do you have an estimation when you release a new version including this?

[artem-sidorenko]

@rediculum 2.5.0 is released