Bug in pg - doesn't close directories

[Adri Verhoef]

>	Give pg more directories than the system allows open fd's.
>The first N will have the message:

>	pg: filename is a directory

>while the remainder will have:

>	filename: Too many open files

Right, only my systems say:

	filename: Invalid argument

>Systems affected:
>	Probably all using AT&T source. I have found the bug in
>A/UX 1.1b (Mac II), Dynix 2.0v2 (Sequent Symmetry),
>SunOS 4.0.3b (Sparcstation 1) and OSx4.4c (Pyramid 90xe).

Add:
 Uniq V.3.0 (*VAX*), AT&T V.2.0.5 (3b2/*)