Bug 74899

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Description of problem:
When running up2date, and the Red Hat Network is loaded and refusing new
connections, the up2date program prints out a correct error message and error
code, but it then exit(3)s with a value of 0 to the shell.  According to the
manpage, 0 is a success.  I think it would be better to return another value.  

The manpage says it returns 1 for an error; I suspect it does so when it
encounters a configuration, installation, or runtime error (like failure to
connect).  May I suggest the use of 2 to indicate that while up2date ran
correctly, it did not succeed in updating packages?

Version-Release number of selected component (if applicable):


How reproducible:
Always

Steps to Reproduce:
1.Wait until RHN is overloaded (or for other reasons not accepting new update
connections)
2.Run up2date or up2date-nox
3.Receive a useful error message saying that RHN is not accepting connections...
4...but check the ?$ shell variable, which reports '0'.
	

Expected Results:  I think it would be useful to know (via shell exit code) that
up2date ran, but was refused update access.

Additional info:

This can be worked around by piping the output to another process to check for
the "Error Class" value.