Add support for capital-case Justfile

[mihaigalos]

Currently, capital-case Justfile files are not syntax-highlighted.
This attempts to address that.

[mihaigalos]

Would like to create a test for this, but don't know how to best approach it.
Please advise.

[NoahTheDuke]

I have no earthly idea how we'd test it, hah.

[mihaigalos]

Maybe you know how to instruct a package manager to consume this branch/PR when installing?
Or installing it locally in .vim, check highlighting directly using vim.

[NoahTheDuke]

Oh I thought you meant using the hand-built automated test system. Manually testing is as easy as pointing the Plug command at the local directory instead of the git repo url

[mihaigalos]

Wait, is e23d9ec939fcc3560ce7983bd9e532441fbf47a0, Aug 27 not already treating case-insensitive just files?
I got my language support from vim-polyglot, which apparently contains the just.vim, Jun 9 from before that commit.

I'm confused, can you have a look? I guess I can close this now.

[NoahTheDuke]

I'll take a look! Maybe I need to cut a new release so polyglot picks it up

[mihaigalos]

Ok. In the meantime, I've contributed a PR to sheerun/vim-polyglot#756.