Fix cmdline print errors

This fixes a lot o' printin' errors in th' cmdline module that occurr'd
between various combinations o':

* Python 2 vs. Python 3
* havin' blessings install'd vs. not
* runnin' in a tty context vs. not

NB: This is a total pain in th' ass to test.
Fix foo} wit' missin' left {

Fixes #33
Update CHANGELOG and varrsion ferr 0.3.11 release