Regtest comparison for 2.13.41

[Phil Holmes]

stem-length-estimation.log: there's much less text in the logfile - don't 
understand why, though.

display-lily-tests.log: there's more output in the logfile.  Again, I have 
no idea why, but this does look a significant difference and I would 
appreciate someone who understands this test looking at what's going on.

tablature-full-notation.log: well - the warning about unterminated ties 
works!  In the log file on the regtest comparison, it gives 3 warnings. 
This may be one per stave, which doesn't seem needed?  I'll check this 
later.

tie-arpeggio.log: ditto.  It would also justify a bit better look at this, 
to ensure the correct number of warnings are given.

part-combine-force-once.ly: The text "Solo" and "Solo II" are moved to the 
right - don't know whether this is an intended fix.

page-breaking-min-systems-per-page2.log: "warning: compressing music to fit" 
is added.  Presumably an intended fix for vertical spacing issues.

page-breaking-page-count3.log: ditto

I'll start my local pixel comparison RSN.

--
Phil Holmes
Bug Squad