Feature Request: Option for change loglevel?

[leopku]

Is there anyway to change loglevel for the default warn level?

[cshum]

The current available config is the -debug flag, which enables more verbose logging.

# both are equivalent

imagor -debug -imagor-secret 1234

DEBUG=1 IMAGOR_SECRET=1234 imagor

[leopku]

Actually, I wanna less details in production mode. For example: only error messages were shown.