If Config Vars value is missing, CLI shows help and exit with failed state.
$ ./iruka set BAR
NAME:
set - Set config vars to the app
USAGE:
command set [command options] [arguments...]
DESCRIPTION:
$ iruka set <KEY1>=<VALUE1>,<KEY2>=<VALUE2>
EXAMPLE:
$ iruka set HELLO=world,SOME_FLAG=1
FOO: bar
BAZ: qux
HELLO: world
SOME_FLAG: 1
OPTIONS:
--app app name or id
Fix #23
WHAT
If Config Vars value is missing, CLI shows help and exit with failed state.