Removed CVS, GUI, PERFORCE and SUBVERSION options and also gui FLAVOR
and create 4 new subports:
devel/git-cvs
devel/git-gui
devel/git-p4
devel/git-svn
All these packages depend of devel/git and install only additional files
and manpages. This work is based on initial patch submitted by grembo@i
at review D30238.
PR: 251090
Sponsored by: Rubicon Communications, LLC ("Netgate")