Call strip against each item of a new list

[atrubachev]

Without strip we can get the last item with trailing characters:

ok: [localhost] => {
    "msg": "['aaa', 'bbb', 'ccc', 'ddd\\n']"
}

strip removes leading and trailing characters and we get "clean" strings:

ok: [localhost] => {
    "msg": "['aaa', 'bbb', 'ccc', 'ddd']"
}