Never use do with multi-line until
Remove trailing whitespace
Add final newline
Remove spaces inside parentheses
Remove spaces inside brackets
Add spaces inside block braces
Remove space before comma
Add space before block braces
Add spaces around operators
Add space around equals in default value assignment
Never put a space between a method name and the opening parenthesis
Put one space between the method name and the first argument
Avoid comma after the last item
Add space after comma
Remove bedundant begin block
Remove parentheses around conditions
Prefer the use of the nil? predicate
Use ! instead of not
Explicit non-nil checks are usually redundant
Favor unless over if for negative conditions