The "v" here isn't a common place. The "dummy" stuff isn't needed.
IMHO, this should be:
Or may be:
I would rather use
like how it is defined in DISTNAME
I removed this in r381648. I wanted to mention though that all of the DIST stuff here is not needed. Everything before ?dummy is what we're telling github is the tag we want to fetch. The fetching automatically adds DISTNAME after the MASTER_SITE URL, hence the ?dummy=/. This will fetch the file as DISTNAME. You can see this here:
~/svn/ports.commit/ports-mgmt/poudriere-devel # make fetch-urlall-list|grep github
So DISTNAME is already used.