Better message for user input plugin-type.
Better message for user input plugin-type.


git-svn-id: 36dcc065b18e9ace584b1c777eaeefb1d96b1ee8@159899 13f79535-47bb-0310-9956-ffa450edef68

apache/forrest,apache/forrest,apache/forrest,apache/forrest,apache/forrest,apache/forrest