fix name schema for sudo plugin

Plugin won't load automatically if added to variable $plugins, if name schema different than $name/$name.plugin.zsh is used (see is_plugin() in oh-my-zsh.sh).
Fix bad right prompt placing.
Fixes tmuxinator plugin find on OSX
Merge pull request #2398 from phstc/fixes-tmuxinator-plugin-find

Fixes tmuxinator plugin `find` on OSX
Merge pull request #2389 from driver2000/patch-1

Fix bad right prompt placing.
Merge pull request #2368 from lumbric/master

fix name schema for sudo plugin