convert-ly broken? in 2.10.0

[Tapio Tuovila]

Hi,
denemo exports .ly -file \version "2.6.0".
With convert-ly that converts OK up until 2.9.27 
but not  .28 or .29.

I noticed some conversation recently about convert-ly being broken on
the lilypond-devel mailing list so I thought this is going to be taken
care of. Now, 2.10.0 (Gub, on SuSE 10.1 -x86) does not either convert
\version "2.6.0" .ly file. The original file stays unaltered and error
message is as follows:


convert-ly --edit /home/[--]mov.ly
convert-ly (GNU LilyPond) 2.10.0
Processing `/home/[--]mov.ly'...
Applying conversion: 2.7.0, 2.7.1, 2.7.2, 2.7.4, 2.7.6, 2.7.10, 2.7.11,
2.7.12, 2.7.13, 2.7.14, Traceback (most recent call last):
  File "/home/tapu/lilypond/usr/bin/convert-ly", line 290, in ?
    main ()
  File "/home/tapu/lilypond/usr/bin/convert-ly", line 284, in main
    do_one_file (f)
  File "/home/tapu/lilypond/usr/bin/convert-ly", line 217, in do_one_file
    (last, result) = do_conversion (infile.read (), from_version,
to_version)
  File "/home/tapu/lilypond/usr/bin/convert-ly", line 162, in do_conversion
    str = x[1] (str)
  File
"/home/tapu/lilypond/usr/share/lilypond/current/python/convertrules.py",
line 2636, in conv
    r"\\override \1VerticalAxisGroup #'extra-Y-extent")
TypeError: sub() takes at least 3 arguments (2 given)
Processing time: 4 seconds


Greetings,
Tapio