def indent_lines(text, indent)
      text ||= ''
      text.lines.map { |line| indent + line }.join
    end
def indent_lines(text, indent)
      text ||= ''
      text.lines.map { |line| indent + line }.join
    end
Indent all lines of the input text using give indentation

 @param text [String] Input text to be indented
 @param indent [String] Indentation string to be appended