But in the case of a union directory with duplicate names, potentially
representing distinct files, there are multiple names, not all of them
distinct, in the directory.  Since rc(1) doesn't say ``one for each
distinct [or unique] path name matched'', one could argue that neither
code nor manual needs change.

If it's really a problem,

	fn nodup {ls -d $*|uniq}
	pr `{nodup *} | lp