Fix option lists in man page and help message

[calvinrw]

• Fix minor (but confusing to me, unfamiliar with cmake) typo in README
• Add -n to option list description shown in help text
• Add -d to and remove -z from option list shown in help text
• Remove -z from option list in man page

I thought I was losing my mind after upgrading and not seeing an option to log to stdout in the help text.