LilyPond ignores copyright assertions for scores in a book.

[Christopher R . Maden]

As posted to lilypond-user, assertion of copyright in a score header has no
discernible effect on the output.  I don’t much care where it ends up, but it
ought to do something.  The attached tiny example was made with 2.12, but
apparently the problem persists in 2.14 and up.

[Er... I don’t seem to be able to attach files via the Web interface.  The file
copyright.ly was posted by me to lilypond-user, see <URL:
https://lists.gnu.org/archive/html/lilypond-user/2012-01/msg00521.html >.]

~Chris