1. Fix checksum error and update to 3.50c
3.50c includes some very minor bug fixes in
script and source files.
2. Added WITH_OPTIMIZE_FLAGS for optimization
3. change e-mail of maintainer
4. bump port revision
Noticed by : Rainer Duffner <email@example.com>,
Gettit Kuehn <firstname.lastname@example.org>
and bento's log(no error at December?
at least November's log I noticed there was
Reviewed by : knu (mentor)