fixes trailing slash on DRONE_SERVER env variable
fixes trailing slash on DRONE_SERVER env variable

veghead/drone,vtolstov/drone,masarakki/drone,vaijab/drone,vaijab/drone,veghead/drone,carnivalmobile/drone,masarakki/drone,donatj/drone,donatj/drone,vtolstov/drone,carnivalmobile/drone,donatj/drone,NamPNQ/drone,lins05/drone,carnivalmobile/drone,NamPNQ/drone,lins05/drone