Change in lilypond-book

[Trevor Daniels]

Devs

I've just run lilypond-book on Windows Vista after several months of inactivity 
and I find its behaviour has changed.  Earlier all the console output from the 
individual runs of LilyPond while processing the snippets was reported back to 
the originating window, in my case a MinGW32 window.  The last release I ran 
and which behaved in this way was earlier than 2.17.6.  Running lilypond-book 
2.17.12 in the same way flashes an irritating empty command.exe window for 
every snippet, and no console output from the LilyPond runs is presented or 
captured in log files.

Before I try to narrow down where this change originated, is this now intended? 
 Surely not.  Expected?  Do others see this behaviour?

Trevor