Add leapsectz option config option

[adrienthebo]

This pull request exposes the leapsectz option, which when set uses a specified offset from UTC to set CLOCK_TAI.

This current revision has tests but could probably benefit from additional work. In addition it looks like the leapsecmode option isn't plumbed through on archlinux and I haven't pushed leapsectz through either. I'm happy to fix that in another PR or incorporate those fixes here.

[aboe76]

@adrienthebo nice work, thanks for this, I don't mind future PR's from you!!!
Please do fix Archlinux 'leapsectz' and 'leapsecmode'

[adrienthebo]

Thank you!

[aboe76]

@adrienthebo is this module something vox pupuli would want to take over?

[alexjfisher]

Looks like I've just described #64

[alexjfisher]

@adrienthebo is this module something vox pupuli would want to take over?

Woah! Completely missed this comment. Yes, if you're open to that, I'm sure people would be interested. I can personally help with the migration too.

[alexjfisher]

https://voxpupuli.org/docs/migrate_module
@aboe76 If you have any questions, the best place is either freenode irc #voxpupuli or the voxpupuli channel on slack https://slack.puppet.com

I'll preemptively send you a github invite, but also no worries if you've changed your mind and would prefer not to migrate your module.

[aboe76]

@alexjfisher no problem, I have joined by your invite.
time to read up

[alexjfisher]

@aboe76 Have you had any more thoughts on this and are you ready to perform the migration?

[aboe76]

@alexjfisher yes I have, I would like to migrate the chrony module. I would like to ask you to assist with this. The reason for the migration is to improve the support and maintenance.

[alexjfisher]

Great! I've got some time free to do most of the migration process. All you really need to do is transfer the repository to the voxpupuli github organisation. Once we've made the first puppet/chrony release, you can use the puppet forge api to deprecate aboe76/chrony and suggest puppet/chrony as its replacement.

[alexjfisher]

I've created an issue with a checklist of stuff to do. Vox Pupuli can handle everything apart from the first and last steps.