--png does not properly obey landscape setting

[Reinhold Kainhofer]

If one uses landscape setting, i.e.
#(set-global-page-size "a4" 'landscape)
then the output of "lilypond --png landscape.ly" will NOT be landscape (90 
degree rotation is missing). 

Attached is a sample file landscape.ly. Run it with
  lilypond --png landscape.ly
and you will get a png like the attached one. While the staves are properly 
layed out, the final png is missing the 90 degree rotation (i.e. the staves do 
not got from left to right, but from bottom to top). The PDF file has the 
proper rotation.

Cheers,
Reinhold

-- 
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Reinhold Kainhofer, address@hidden, http://reinhold.kainhofer.com/
 * Financial & Actuarial Math., Vienna Univ. of Technology, Austria
 * http://www.fam.tuwien.ac.at/, DVR: 0005886
 * LilyPond, Music typesetting, http://www.lilypond.org

landscape.png
Description: PNG image

landscape.ly
Description: Text Data

landscape.pdf
Description: Adobe PDF document