devel/py-setuptools27 renamed to devel/py27-setuptools
r436290 renamed devel/py-setuptools27 to devel/py27-setuptools.
Here are four portupgrade commands to make amends:
portupgrade -ncfpvo devel/py27-setuptools devel/py-setuptools27 portupgrade -fpvo devel/py27-setuptools devel/py-setuptools27
portupgrade -ncfprvx devel/py27-setuptools devel/py27-setuptools portupgrade -fprvx devel/py27-setuptools devel/py27-setuptools
Run similar commands for updating the origin of, say, devel/py-setuptools36 to devel/py36-setuptools.