I would like to put `go:generate` in `--iface-comment`. However, the leading space makes generated comment useless. ### Expected Behaviour `ifacemaker ... -y "go:generate cmd ..."` generates ``` //go:generate cmd ... type Interface interface { } ``` ### Actual Behaviour `ifacemaker ... -y "go:generate cmd ..."` generates ``` // go:generate cmd ... type Interface interface { } ``` ### Possible Solution Add an optional to remove the leading space.