Don't include `kwargs` entries in `args`.
`format_call_defaults` is not necessary since it the same as `arg_lookup`.

Fixed arguments popping order.
Fix unit tests regarding `salt.utils.find._parse_interval`
Docstring formatting to style guide.
Adapt test cases to fixed behaviour.
Merge pull request #7487 from s0undt3ch/hotfix/arg-lookup-duplicates

Don't include `kwargs` entries in `args`.