```
$ cd /usr/ports/mail/notmuch
$ portlint -AC
WARN: Makefile: for new port, make $FreeBSD$ tag in comment section empty, to make SVN happy.
0 fatal errors and 1 warning found.
$ cd /usr/ports/mail/py-notmuch
$ portlint -AC
WARN: Makefile: for new port, make $FreeBSD$ tag in comment section empty, to make SVN happy.
0 fatal errors and 1 warning found.
```
The output of `poudriere testport` on `FreeBSD:11:amd64` is clean.