Clarify docstring a bit.

git-svn-id: https://svn.erp5.org/repos/neo/branches/prototype3@815 71dcc9de-d417-0410-9af5-da40c76e7ee4

neo/neoctl/app.py

@@ -31,7 +31,7 @@ class ActionError(Exception): pass
 
 def addAction(options):
     """
-      Add storage nodes pending addition into cluster.
+      Change node state from "pending" to "running".
       Parameters:
       node uuid
         UUID of node to add, or "all".