prevent garbage being printed; for example:

	; 8.out fubar
	<stdin>:1: (error) 8.out: can't open fubar: 'fubar' directory entry not found

	/sys/lib/acid/port
	/sys/lib/acid/386
	no symbol information
	acid: new()
	8.out: <stdin>:2 (fatal problem) new: exec ��: 'fubar' directory entry not found
	<stdin>:2: (error) msg: pid=5369 waitstop: process exited