Support Arch Linux ARM detection

[fionn]

Contents of /etc/os-release:

NAME="Arch Linux ARM"
PRETTY_NAME="Arch Linux ARM"
ID=archarm
ID_LIKE=arch
BUILD_ID=rolling
ANSI_COLOR="38;2;23;147;209"
HOME_URL="https://archlinuxarm.org/"
DOCUMENTATION_URL="https://archlinuxarm.org/wiki"
SUPPORT_URL="https://archlinuxarm.org/forum"
BUG_REPORT_URL="https://github.com/archlinuxarm/PKGBUILDs/issues"
LOGO=archlinux-logo

[mboelen]

Hi,

Thanks. Unfortunately, I can't merge this, as the 'head' is gone (deleted on 29 Oct). Can you resubmit, so we can properly give you the credits of your submission? :)

[fionn]

Hello, thanks for considering my PR.

Since it's still open, I think this can be (non-fast-forward) merged with something like

git checkout master
git fetch origin refs/pull/1310/head:archarm
git merge archarm
git push

but I made a new one (#1501) if you prefer.

[mboelen]

Looks like it worked indeed. Thanks!