Have freebsd port use pkg info if the freebsd version is >= 10000017

The port package provider for FreeBSD was not checking if the freebsd version is version 10. This causes the provider to attempt to use 'pkg_info' instead of 'pkg info'. This PR should fix this bug.
What's this line for? The line above it has `==`, so I'm thinking maybe you didn't notice that and had a problem so you added this extra line?