Use unless instead of negated if
Delimit %w-literals with parens
Use proc instead of Proc.new
Remove redundant begin block
Remove redundant returns
Stray semicolon
Use “fail” instead of “raise”
Single space before first argument
Add space after comma in arrays
Add space around operators
Add space around block braces
Remove space inside array brackets and parens
Add space inside hash braces
Use long form of special global vars
Remove generated dummy rails app for test environment
Ignore dummy app in repository
Make default “rake” create dummy app if needed and run tests
Trailing whitespace
Prefer single-quoted strings when interpolation not necessary
Use wordarray