TarsnapTask: header for SIGQUIT
TarsnapTask: header for SIGQUIT

This should have been part of 808b37c8a71b0dfc25b9f56355f60e427627b861.

Tarsnap/tarsnap-gui,Tarsnap/tarsnap-gui,Tarsnap/tarsnap-gui,Tarsnap/tarsnap-gui,Tarsnap/tarsnap-gui