[mpbb] branch variant-support created (now 14e50df)

[Clemens Lang]

Clemens Lang (neverpanic) pushed a change to branch variant-support
in repository mpbb.

      at 14e50df  Support specifying variants in list-subports

This branch includes the following new commits:

     new 0619324  Revert "Only request variants explicitly when needed."
     new c6bf5ba  Support specifying variants in mpbb install-port
     new 54bc9b6  Fix (or silence) install-port shellcheck warnings
     new 158d05f  Support specifying variants in install-dependencies
     new d5569cf  Fix (or silence) install-deps shellcheck warnings
     new 14e50df  Support specifying variants in list-subports

The 6 revisions listed above as "new" are entirely new to this
repository and will be described in separate emails.  The revisions
listed as "add" were already present in the repository and have only
been added to this reference.