The following patch will fix this.
A local gnats mirror is often the only way to rip out patches in a
format which is usefull for further PR handling / patching, so it will be
nice if the default database type does match the upstream (gnats-freebsd).
Maybe this trivial fix helps even others to move from gnats to gnats4
PR: ports/159947
Submitted by: ohauer
Approved by: maintainer timeout (vd ; 175 days)