class RuboCop::Cop::Performance::RedundantMerge

def rewrite_with_modifier(node, parent, new_source)
  indent = ' ' * configured_indentation_width
  padding = "\n#{indent + leading_spaces(node)}"
  new_source.gsub!("\n", padding)
  format(WITH_MODIFIER_CORRECTION, keyword: parent.loc.keyword.source,
                                   condition: parent.condition.source,
                                   leading_space: leading_spaces(node),
                                   indent: indent,
                                   body: new_source).chomp
end