id	summary	reporter	owner	description	type	status	priority	milestone	version	resolution	keywords	cc
36	Print prefix even when stdin is not a terminal	judah		"If stdin is not a terminal, haskeline will not print the prefix.  This can cause confusion during testing; in particular, see http://bugs.darcs.net/issue1050 .

We should always print the prefix.  I think that's more commonly the right thing, and if a program dislikes that behavior it can use `hIsTerminalDevice` to decide whether to use a prefix or not. 

Note as a corollary that we should make sure that echo is turned on in the above case (for the same ease of testing)."	defect	closed	major		0.2.1	fixed