Make version and env prefix dirs before expanding their paths
Make version and env prefix dirs before expanding their paths

as _realpath depends on the paths existing

travis-ci/gimme,glevand/travis-ci--gimme,travis-ci/gimme,glevand/travis-ci--gimme,solarce/gimme,kofalt/gimme,dlsniper/gimme,meatballhat/gimme,zenazn/gimme