NSSavePanel complains about .hidden

[Fred Kiefer]

Richard latest changes to NSData caused that the NSSavePanel now 
complains, if it cannot find a .hidden file in a directory:

2002-10-05 13:21:29.687 Ink[1323] File NSData.m: 219. In 
readContentsOfFile Open (/.hidden) attempt failed - No such file or 
directory

The questions is of course, if we should first check in NSSavePanel, if 
the file is there and only then try to read it or if we should switch 
off this log message. I would opt for the first solution, as this would 
make things a lot faster, if the the file does not exist.
For the NSData code it looks a bit strange the the zone determination is 
scattered all through function readContentsOfFile(), why not find out 
when the function gets called (this is done in one of the places, but 
not in the other).

BTW, this error message is shown eight times, when a NSSavePanel is 
opened, although only two columns are shown. I will inspect into this to 
find out if there are unneeded operations going on.

Fred