1.3.143 ly2dvi broken with empty tagline

[Mark Hindley]

>From 141 (I think) ly2dvi croaks if the tagline is set empty.


tagline = "";


! Undefined control sequence.
<argument> ...boxrestore \mbox {}\lilypondtagline 
                                                  \@@par 
l.25 \end{document}
                   
[3] (ly2dvi.out.aux) )
(see the transcript file for additional information)
Output written on ly2dvi.out.dvi (3 pages, 190956 bytes).
Transcript written on ly2dvi.out.log.
error: error: command exited with value 256
Traceback (innermost last):
  File "/usr/local/bin/ly2dvi", line 537, in ?
    dvi_name = do_files (files, extra)
  File "/usr/local/bin/ly2dvi", line 445, in do_files
    system ('latex \\\\nonstopmode \\\\input %s' % latex_file)
  File "/usr/local/bin/ly2dvi", line 217, in system
    error (msg)
  File "/usr/local/bin/ly2dvi", line 126, in error
    raise _ ("Exiting ... ")
Exiting ... 

ly2dvi exited abnormally with code 1 at Wed Mar 28 00:07:15