e2fsprogs: Update to 1.42.8.

This pull request inspired by a resize2fs near-disaster that wouldn't have happened with this version.

EDIT: ignore what's below this line; I couldn't reproduce it

I noticed that this caused many things to rebuild, including e.g. the X.Org server, which I wouldn't have expected to depend on filesystem tools.  Full list at https://gist.github.com/falsifian/7065503 .