misc/mbuffer: ok

I'm going to close this review, the upstream is not actively maintained any more
https://github.com/peritus/bumpversion/commit/cc3c8cfd77380ef50eeac740efe627509a248101

Many thanks to everyone who helped review this patch.

added ports maintainers to reviewers, except devel/viewvc

Thanks @koobs, @sbz.

Remove *_DESC that covered by the default descriptions, sort OPTIONS_DEFINE and OPTIONS_DEFAULT

Deleted `BAZAAR_DESC?= Bazaar version control support```
the devel/bzr port had been removed:

devel/bzr||2021-01-02|Has expired: Uses Python 2.7 which is EOLed upstream

Update patch for the latest ports tree

Thanks @koobs, @sbz.

In D30551#686296, @koobs wrote:

@loader Looks good. Note you're implicit on all ports changesets, but its always good to get at least one independent review:

Reviewed_by: koobs

In D30338#681798, @koobs wrote:

Yep, rule of thumb:

• Mergeable commits first
• Non mergeable commits last

Mergeable commits:

• Consistent metadata (maintainer, etc)
• Bugfixes

In D30338#681556, @koobs wrote:

One other note. When taking maintainer'ship or when combining multiple changes, land all changes that can be MFH'd first , and the version update separately.

This ensures ports in all branches have the same maintainer

Thanks, @koobs.

Thanks, @koobs.

• testport: OK (poudriere: 1400002, [armv7, aarch64, amd64, i386], tested)

In D28572#640601, @rmacklem wrote:

Add check for UID == 0, since this port
can only be installed as root.

poudriere[0] runs as user nobody by default, and
it failed to run install(1) with "-o root -g wheel".

In D28172#636121, @koobs wrote:

@loader Feel free from now on to:

Approved by: koobs (mentor, implicit) for standard/normal commits

Thanks @koobs, @cs.