+ # remove the useless offline-root directory
+ mv $(CURDIR)/debian/lilypond-doc/usr/share/doc/lilypond/html/offline-root/* \
+ $(CURDIR)/debian/lilypond-doc/usr/share/doc/lilypond/html/.;
+ rmdir $(CURDIR)/debian/lilypond-doc/usr/share/doc/lilypond/html/offline-root;