public static String indent(Stream<String> text) {
        return indent(text.toArray(String[]::new));
    }
Indents one level after each new-line-character as defined by
<code>nl()</code>. f multiple strings are specified, new-line characters
will be added between them.

@param text  the text to indent.
@return      the indented text.
common-parent/codegen/src/main/java/com/speedment/common/codegen/util/Formatting.java