[Nasal-cvs] regex.nas unix.nas

[Andy Ross]

Update of /home/nasal-cvs/nasal/lib
In directory purr:/tmp/cvs-serv13996/lib

Modified Files:
	regex.nas unix.nas 
Log Message:
Closed ghosts in the io library should no longer be valid io ghosts
for future calls (prevents needing to test for a null handle poininter
in all the sublibrary code).

Check errno in readdir to prevent dying with "success" at the end of a
directory.

Add comment to call() describing a stack trace line number misfeature.

Fix argument order in regex.sub/sub_all.

Remove stray debug code from unix library.