[MacPorts] #39744: add chemistry category to openbabel portfile

#39744: add chemistry category to openbabel portfile -------------------------+-------------------------------- Reporter: c.herbig@… | Owner: macports-tickets@… Type: enhancement | Status: new Priority: Normal | Milestone: Component: ports | Version: Keywords: haspatch | Port: openbabel -------------------------+-------------------------------- Append chemistry to categories so that it will show up in the chemistry category. -- Ticket URL: <https://trac.macports.org/ticket/39744> MacPorts <http://www.macports.org/> Ports system for OS X