Favor unless over if for negative condition
Use parentheses around method arguments
Remove unused block arguments
Don't use useless braces around hash parameters
Prefer #find over #detect
Check for proper comment annotations
Use recommended dot position
Remove superfluous blank lines
Use new hash syntax
Use standard parameter name for #==
Remove redundant `self`
Use single space before first argument
Remove inner spaces
Enable some more checks for Rubocop