poudriere logs in [ports/199542](https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=199542).
```
$ (cd devel/cvs; portlint -C)
WARN: Makefile: unless this is a master port, MAINTAINER has to be set by "=", not by "?=".
WARN: Makefile: unless this is a master port, COMMENT has to be set by "=", not by "?=".
WARN: files/patch-cvs.info.texinfo-5.x: patch was not generated using ``make makepatch''. It is recommended to use ``make makepatch'' when you need to [re-]generate a patch to ensure proper patch format.
WARN: files/patch-cvs__Makefile: patch was not generated using ``make makepatch''. It is recommended to use ``make makepatch'' when you need to [re-]generate a patch to ensure proper patch format.
0 fatal errors and 4 warnings found.
```
```
$ (cd devel/cvs+ipv6; portlint -C)
WARN: Makefile: KERBEROS is listed in OPTIONS_DEFINE, but no PORT_OPTIONS:MKERBEROS appears.
FATAL: Makefile: extra item "CONFLICTS_INSTALL" placed in the LICENSE section.
WARN: ../cvs/files/patch-cvs.info.texinfo-5.x: patch was not generated using ``make makepatch''. It is recommended to use ``make makepatch'' when you need to [re-]generate a patch to ensure proper patch format.
WARN: ../cvs/files/patch-cvs__Makefile: patch was not generated using ``make makepatch''. It is recommended to use ``make makepatch'' when you need to [re-]generate a patch to ensure proper patch format.
1 fatal error and 3 warnings found.
```