Changes to fix Can't locate flush.pl in @INC ( .... based on PR pkg/47484
with patches/patch-ab,  and some more as (3) and (4):
(1) Add patch-ab to eliminate old-fashioned flush.pl which causes
  error as:
  Can't locate flush.pl in @INC ( ....

(2) patch-ab also includes:
  - Eliminate old-fashioned call of ctime.pl
  - Eliminate non-supported '$#'
  - Rename 'sub date' to be more specific name 'sub a2ps_date'
  This patch is derived from
    http://trac.macports.com/changeset/86539

(3) Add comment on patch-aa from cvs log.

(4) Add LICENSE=mit.

(mef)