Updates:
Status: Accepted
Comment #7 on issue 3010 by [email protected]: Removes '-signs from vectors
http://code.google.com/p/lilypond/issues/detail?id=3010
Well, in the Documentation/snippets directory, all #'# are back. It would
have been necessary to copy the changed files over to snippets/new (after
editing the header), like the header in the snippets suggests (editing the
original files is not needed, the changes will eventually get through with
the next LSR import). Since this had not been done, the latest LSR import
erased all the changes.