--track argument required even when listing tracks

[aau-ros]

In the current version 0.5.14 the track argument is required in bloom/commands/release.py even though --list-tracks is selected. It just doesn't make sense to have to add a track when listing the tracks intending to find out what tracks are available. This is very confusing when taking on a repo from someone else. Using Mutual Exclusion Groups should enhance the usability.

[wjwwood]

You're right, that doesn't make sense as it is. I'll mark this as untargeted for now because I don't have time to put together a pull request. I usually come through and resolve issues like this periodically before a release. If you have time to look into it yourself and provide a pull request it might get done sooner.

[trainman419]

+1; I ran into this today.