Bug#841276: timemachine - slight improvement of the menu item

[trebmuh at tuxfamily.org]

Package: timemachine
Version: 0.3.3-2

Dear debian maintainers,

please add those lines to the debian/timemachine.desktop file in order 
for the menu item to provide a comment :
Comment=JACK audio recorder for spontaneous and conservatory use
Comment[fr]=Enregistreur audio JACK pour une utilisation spontanée et 
conservatrice

HTH
Olivier