fset format_signoff $G $(c4)($(c2)signoff$(c4)/$(c1)$(c4)) $(c3)by $(c2)$1$(c4)($(c1)$sar(/@/$(c2)@$(c1)/$2)$(c4))$(c3): $3-
fset format_channel_signoff $G $(c4)($(c2)signoff$(c4)/$(c1)$3$(c4)) $(c3)by $(c2)$1$(c4)($(c1)$sar(/@/$(c2)@$(c1)/$2)$(c4))$(c3): $4-