Flags for output control

[nbgibson]

Checklist

• I'm reporting a feature request
• I've verified that I'm running youtube-dl version 2020.05.08
• I've searched the bugtracker for similar feature requests including closed ones

Description

The addition of some flags to control output for automated YTDL jobs would be appreciated. eg- Loglevel, timestamps, formatting, ect.

[nbgibson]

For folks that may be looking for this at a later point, it is possible to add timestamps via wrapping the output via a few different methods as detailed here: https://stackoverflow.com/a/25764579/11086171

Piping output through awk '{ print strftime("%c: "), $0; fflush(); }' before redirecting to your output log file should do you fine. For more formatting options refer to: https://strftime.org/

[nbgibson]

Updated feature request as timestamps can be addressed fairly easily externally, but there is currently a lack of log control with the program.