Log Message:
rcm: Import rcm-1.3.1 as sysutils/rcm

The rcm suite of tools is for managing dotfiles directories.
This suite is useful for committing your rc files to a central repository to
share, but it also scales to a more complex situation such as multiple source
directories shared between computers with some host-specific or
task-specific files.

Originally packaged in pkgsrc-wip by Jonathan Buschmann and then updated and a
bit modified by myself.