cleanup groking exit status of gojira / exit status only applying to two commands

[eskerda]

cleanup is run for any gojira command, and eats up exit status of main. This is only partly fixed by #56 and introduces a new issue of exit_status not being always set thus resulting on invalid exit codes.

As I see it, there are three ways of solving it:

• Always get exit_status after running main chore(*) fix exit_status #57
• Move cleanup to run on a trap and remove exit_status Yet another way of removing exit status #59
• Remove cleanup and exit_status alltogether feat(*) remove cleanup #58

Pick only one 😉 My preference would be for #58 but only if it really works