Ben Sturmfels be2621a43c Prevent unhandled exception on non-existant user.
These changes bring `makeadmin` and `changepw` in-line with the approach used in `deleteuser`.

I've also made the error messages more consistent: list the username and full sentences.
2015-11-05 14:49:36 -06:00
..
2015-08-24 21:07:06 +02:00
2014-06-29 04:13:23 +03:00