Comment #5 on issue 2518 by [email protected]: Patch: Make \footnote a post-event http://code.google.com/p/lilypond/issues/detail?id=2518
Basically, if the numbers get smaller overall, that's a good sign (relative changes in parens are nice if positive, naughty if negative). Large jumps in unrelated tests tend to be build system noise. Some regtest outputs change all the time (like those for graphviz, and the properties are also quite variable).
