crlf newlines should be converted to lf

[NattyNarwhal]

It's a bad idea to leave it like this because it massively fowls whitespace in diffs/makes merges harder. PHP doesn't care about the newlines, and git can convert on the fly for Windows users, so storing crlf in the repo just makes things annoying.

[NattyNarwhal]

OFC, this will basically break all PRs in flight, so we should merge and close what we can.