[Guy Harris <guy@xxxxxxxxxx>]

> How about having an option -p that would prefix all lines of tethereal
> output

	tooting$ man tethereal

		...

	     -p  Don't put the interface into promiscuous mode.  Note
	         that the interface might be in promiscuous mode for some
	         other reason; hence, -p cannot be used to ensure that
	         the only traffic that is captured is traffic sent to or
	         from the machine on which Tethereal is running,
	         broadcast traffic, and multicast traffic to addresses
	         received by that machine.

Pick another letter.