pass a list of args instead of a string
Merge pull request #240 from RomanShestakov/master

pass a list of args instead of a string
turn args from string to list - related to https://github.com/erlware/relx/issues/239
Merge pull request #242 from RomanShestakov/master

turn args from string to list - related to https://github.com/erlware/re...
Fix grep pattern for beam process