Bug#819546: vsftpd no longer starts with systemd because of listen_ipv6=NO from Bug: #803999

[Jeremy Bicha]

Control: severity -1 grave

Since the maintainer has orphaned this package [1] and therefore this
package is maintained by Debian in general, I'm resetting the bug
severity since I agree with the reporter that this is a RC issue.

Thanks,
Jeremy Bicha