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.