FixedOffsetTimezone renders negative offsets incorrectly

[moreati]

>>> babel.util.FixedOffsetTimezone(-60).zone
Etc/GMT+-60

[sils]

This is a bug, change needs to be backported to the maintenance 2.0 branch, @moreati I guess you'll have a PR for this soon as you already had a commit solving this, can you submit that PR for both master and the maintenance 2.0 branch?

[moreati]

can you submit that PR for both master and the maintenance 2.0 branch?

I'll try