Some minor changes to `Args`
Some minor changes to `Args`

 - use `?` rather than unwrap
 - Remove the `PartialEq<TokenKind> impl; it's not needed anymore.
 - Inline `at_end` because why not.
 - Split the second part of the while condition as an if inside the body.

Flat/serenity,zeyla/serenity.rs,acdenisSK/serenity,Lakelezz/serenity,zeyla/serenity