Sort hash keys for deterministic output

[atoomic]

Fixes RT #122977

Guarantee a consistant output when run multiple times.

[atoomic]

https://rt.cpan.org/Public/Bug/Display.html?id=122977

[mohawk2]

It seems @wbraswell is too busy to deal with this. A workaround is to set PERL_HASH_SEED=0 which at least gives the same result on repeated runs, even if it still creates pointless diffs.

[wbraswell]

@zmughal
Would you be willing to help set up Appveyor & Travis testing for this repo, so we can know if it is safe to merge this and the other pull requests?

[mohawk2]

@wbraswell You can see the GitHub Actions config that's part of this PR, that you could git cherry-pick straightaway? Why would you want to use the other, moribund CI providers?

[mohawk2]

An alternative is simply to merge the other PR #1, which is only CI. That would then make this one rebase-able past that, and would (with authorisation) be CI-ed.

[zmughal]

An alternative is simply to merge the other PR #1, which is only CI. That would then make this one rebase-able past that, and would (with authorisation) be CI-ed.

This is what I recommend as well. PR #1 covers all the major OSes.