core: Correct a mistake in release announcement
core: Correct a mistake in release announcement

GNOME/rygel,jku/rygel,Tarnyko/rygel,luisbg/rygel,GNOME/rygel,Pelagicore/Media-Manager-Rygel-patched,Tarnyko/rygel,Pelagicore/Media-Manager-Rygel-patched,jku/rygel,GNOME/rygel,Pelagicore/Media-Manager-Rygel-patched