Bash completion

[Martin Packman]

Hi all,

We need someone who cares about bash completion to step up and make
sure it works well for juju 2.0. There are several reported issues and
changes needed:

1) Bash completion sometimes? doesn't work at all
<https://bugs.launchpad.net/juju-core/+bug/1588403>

If you can reproduce this, please try adding 'set -x' to the top of
/usr/share/bash-completion/completions/juju2 and completing again, and
see if the output spam is enlightening. Add details to the bug.

2) Update to completion script
<https://github.com/juju/juju/pull/5057>

JuanJo proposed some updates a while back, but the branch needs
picking up and finishing off. This is also a prerequisite for...

3) Bash completion for versioned juju commands
<https://bugs.launchpad.net/ubuntu/+source/juju-core/+bug/1570657>

When we're installing version-numbered aliases for juju, those should
also have completion scripts.

Thanks,

Martin