ports/162995: Add USE_READLINE knob

[fjoe at FreeBSD.org]

Synopsis: Add USE_READLINE knob

Responsible-Changed-From-To: freebsd-ports-bugs->portmgr
Responsible-Changed-By: fjoe
Responsible-Changed-When: Thu Dec 1 14:22:06 UTC 2011
Responsible-Changed-Why: 
Over to portmgr.

http://www.freebsd.org/cgi/query-pr.cgi?pr=162995