[cli] HelpFormatter

(Reposting with [cli] in subject line) Regarding CLI, "Well done" to all contributors, and thanks for CLI. Over the years I'd developed my own, uh, "technique" for doing command line options, and I always dreaded it. No more pain. I've corrected a couple of minor flaws in HelpFormatter, an

commons-cli HelpFormatter

Regarding CLI, "Well done" to all contributors, and thanks for CLI. Over the years I'd developed my own, uh, "technique" for doing command line options, and I always dreaded it. No more pain. I've corrected a couple of minor flaws in HelpFormatter, and made two minor changes with regard to