worker: Rename function name in the comment as well
worker: Rename function name in the comment as well

It was renamed in 47b023866faac2c5e3302d4d3fc42a0260a5557c

Acked-by: Christophe Fergeau <05b95054a663c388a4e33d95828cb30f0370f8ef@redhat.com>

fgouget/spice,SPICE/spice,fgouget/spice,fgouget/spice,SPICE/spice,SPICE/spice,fgouget/spice