In this revision, a few whitespace and documentation changes were made:

• If DNS was configured but filtered/firewalled, the messages would be difficult to understand. Immediate reaction/retry suggestions are added to the error text
• If the user tried the -C/–vcentercert option but didn’t give a protocol, the tool would prepend it. The error message said “You have an error, trying with a protocol” but that was misunderstood as “you have an error. the sky has fallen, nothing further will be done”. The error message is augmented to be a bit more understandable.