license checker is now flagging files that haven't changed

The license checker is now failing on files that haven't changed. So any file with license header containing 2015 but hasn't changed is causing a failure. This is forcing us to either 1) do a change/commit of every file in every repo that has a license header or 2) turn off license checking via -Dlicense.skip=true.

This only started happening last week. So something changed in the past week that caused this.