[maildropl] Escape function not working?

[<co...@ar...>]

The following in my filter:

	/Subject: *!.*/
	s=escape($MATCH2)
	log "Escaped (?) subject: " $s

Logs, i.e.:

Escaped (?) subject: Comment Added: On-board Sound doesn't work

Which is a problem, becuase I want to pass the contents of the subject 
in single quotes to a shell script.  But the single quote IN the subject 
of course breaks it.  I thought that's what escape was for?