Fix a bug in the new code that prevented the system from correctly matching addresses.
Remove comments in the show-help text indicating that we would continue in the face of incorrect specifications - leave that to the calling layer to decide.
Modify the new opal_ifmatches so it returns error codes letting the caller better understand the result.
Modify the oob to ensure we abort if we don't find interfaces matching specified constraints, and that we do so without multiple error messages.
NOTE: we have a conflict in our standards. We have been using comma-delimited lists of interfaces for all our params. However, one param - opal_net_private_ipv4 - now uses semicolons instead of comma separators. No idea why, but it is confusing.
This commit was SVN r24755.
