class RuboCop::RSpec::ConfigFormatter

def dump
  YAML.dump(unified_config)
    .gsub(%r{^\w+/}, "\n\\0")   # Add an extra newline before each cop.
    .gsub(/^(\s+)- /, '\1  - ') # Add 2 spaces before each array element.
    .gsub('"~"', '~')           # Don't quote tilde, YAML's null value.
end