Log Message:
Update misc/py-anita to 1.13.  Changes from 1.12:

When installing NetBSD/sparc, use a terminal type of "xterm" rather
than "sun", as anita is more likely run from an xterm or other
ANSI-like terminal than from a sun console.

In the BUGS section of the man page, mention the specific NetBSD ports
affected.

Fix typos in the man page.