Log Message:
1. adapt perl 5.22 or later, 2. silence pkglint 3. MAINTAINER conversion

1. add patch-ac, to adapt perl-5.22 or later change
   Can't use 'defined(@array)' (Maybe you should just omit the defined()?)
   Sorry separated patch for one file,
2. Add DEPENDS= nkf to process Japanese document
3. move LICENSE= line to meet pkglint rule
4. convert MAINTAINER to pkgsrc-users
5. PKGREVISION++