Mark the macport as "openmainteiner"

[galexv]

As suggested in macports/macports-ports#2536 (comment)

[galexv]

As said in Macports Guide,

If a port's maintainer contains the address <openmaintainer@macports.org>, this means that the author allows minor updates to the port without contacting him first. But permission should still be sought for major changes.