By making the "Unable to open config file" header a warning, it was
not appearing with the filename when a config file was specified and
not found. Now we make it an error message again, but only issue
the error if a filename was specified - if none was specified, then
we don't even issue a warning, just the "Using autoconfig" info message.
Signed-off-by: Alan Coopersmith <alan.coopersmith@sun.com>
(cherry picked from commit bd713794ce)
Signed-off-by: Keith Packard <keithp@keithp.com>