- Ignore working directories (and the flavored versions)
- Ignore Makefile.local files
- Synchronize the ignored files/directories between git and subversion
NOTE: it was intentional to _not_ ignore .git and .svn directories in
subversion and git respectively, as a dual checkout of the Ports tree is
not supported.
Approved by: portmgr (mat)
Differential Revision: https://reviews.freebsd.org/D10698