+ ... text=['BLURB',], prefix=('/* ', ' * ', ' */'),
+ ... )) # doctest: +REPORT_UDIFF
+ /* Copyright (C) 2005-2009 A <a@a.com>
+ * B <b@b.edu>
+ *
+ * BLURB
+ */
+ >>> print(copyright_string(original_year=2005, final_year=2009,
+ ... authors=['A <a@a.com>', 'B <b@b.edu>'],