Comment 16 for bug 260251

There is another experimental fix in upstream subversion.
http://opencvlibrary.svn.sourceforge.net/viewvc/opencvlibrary/trunk/opencv/src/highgui/cvcap_v4l.cpp?r1=1604&r2=1609

I've rebuilt a local copy of the current package with this fix included and seeing if this makes things any better.