Elimate duplicate login call in cf7 logs command
Elimate duplicate login call in cf7 logs command

[#169746459]

Co-authored-by: Weyman Fung <4ab5e17be5c5cdce6cf54d6174afda06421ccec1@pivotal.io>
Co-authored-by: Merric de Launey <79964dcbacbf8006d1234555614dad3bcf49e6d6@pivotal.io>

cloudfoundry/cli,cloudfoundry/cli,cloudfoundry/cli