"foo", what this does is:
(1) Put all distfiles and patchfiles in /usr/ports/distfiles/foo
(2) Go to ftp://ftp.freebsd.org/pub/FreeBSD/distfiles/foo when the
master site is down
When your port has a lot of dist/patchfiles, or has a file that does
not have a very port-specific name (e.g., "Makefile"), set this
variable instead of redefining DISTDIR. (If you redefine DISTDIR, (1)
will work but (2) will not.)
Agreed that it's a good idea by: adam