class RuboCop::Cop::Style::SpaceInsideHashLiteralBraces

def message(brace, is_empty_braces, expect_space)
  inside_what = if is_empty_braces
                  'empty hash literal braces'
                else
                  brace.source
                end
  problem = expect_space ? 'missing' : 'detected'
  format(MSG, "#{inside_what} #{problem}")
end