Improve readability
Improve readability

    By renaming push and pop to push_vlan and pop_vlan and giving
    a default value of True it makes it plainly obvious what these
    arguments are for and how they are used

anarkiwi/faucet,mwutzke/faucet,trentindav/faucet,anarkiwi/faucet,faucetsdn/faucet,shivarammysore/faucet,gizmoguy/faucet,shivarammysore/faucet,faucetsdn/faucet,REANNZ/faucet,gizmoguy/faucet,REANNZ/faucet,trungdtbk/faucet,trentindav/faucet,trungdtbk/faucet,mwutzke/faucet