Incorporate suggested rephrasing
-Add an additional level of verbosity. ``--verbose`` now contains significantly less output, and users that need complete full debug-level output should pass it twice.
+Add an additional level of verbosity. ``--verbose`` (and the shorthand ``-v``) now
+contains significantly less output, and users that need complete full debug-level output
+should pass it twice (``--verbose --verbose`` or ``-vv``).
