Switch zip generation options to make .config files work

Not sure exactly what the issue is here, but calling `zip - -@` was resulting
in a differently constructed zip file than `zip name.zip -@` and therefore eb
config files were not getting run. Strangely everything else seemed to work and
the archive created in both cases contained the correct files. Could use some more
investigation, but its working now (though it has to use a tmp file)