Move the "mv" invalid destination user check into the runner.
-rw-r--r-- 405 Rakefile
drwxr-xr-x - bin
drwxr-xr-x - doc
drwxr-xr-x - lib
-rw-r--r-- 753 mailshears.example.conf.yml
-rw-r--r-- 740 mailshears.gemspec
drwxr-xr-x - test