Emacs' version library (e.g. version-to-list) understands a number of
suffixes (see version-regexp-alist), but -dev is not one of them. Rather
than break compatibility (or impose a new, non-portable value onto
version-regexp-alist), I think it's best we adopt -pre instead. I
could've chosen -rc, -alpha, -beta, or -git, but I don't think any of
these accurately represent Doom's current state yet (and I don't want to
lock its versioning to git).
3d6e0311b9