- Update to 7.0 patch 3
 - Link against termcapw instead of termcap (by dbaio)
 - Bump PORTREVISION for shlib change
 
Changes: https://cnswww.cns.cwru.edu/php/chet/readline/CHANGES
https://lists.gnu.org/archive/html/bug-bash/2016-09/msg00107.html https://lists.gnu.org/archive/html/bug-readline/2017-01/msg00002.html