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/%
Give the gocryptfs process one extra millisecond to close
files. Allows us to drop several other sleeps.
UnmountErr now really returns an error when it detects an fd leak
instead of just printing a message.
