scripts: fix-arch-wifi eats inetreup
vim: Use fmt instead of par for paragraph formatting.

Par is not available from the official arch repos, and I want to keep the number of AUR
stuff I use as less as possible and do not want to build such a trivial thing from
source.  Gonna see if fmt will do instead.
vim: Honor line width conventions for commit messages and email.

90 columns is better, but respect conventions too.