ports/122797: [astro/gpsbabel] leave maintainership

[tabthorpe at FreeBSD.org]

Synopsis: [astro/gpsbabel] leave maintainership

Responsible-Changed-From-To: freebsd-ports-bugs->tabthorpe
Responsible-Changed-By: tabthorpe
Responsible-Changed-When: Tue Apr 15 18:15:58 UTC 2008
Responsible-Changed-Why: 
I'll take it.

http://www.freebsd.org/cgi/query-pr.cgi?pr=122797