Our git version is v2+ for some time now, but go.mod
still declared v1. Hopefully making both match makes
https://pkg.go.dev/github.com/rfjakob/gocryptfs/v2 work.
All the import paths have been fixed like this:
find . -name \*.go | xargs sed -i s%github.com/rfjakob/gocryptfs/%github.com/rfjakob/gocryptfs/v2/%
We used to pass `-v` on `gocryptfs -init` but not for
mount, which seems strange by itself, but more importantly,
`-v` does not work on Yubikeys.
Drop `-v`.
Fixes https://github.com/rfjakob/gocryptfs/issues/571
