Ignore inventory config files when using an inventory directory.

lib/ansible/inventory/dir.py

@@ -36,9 +36,14 @@ class InventoryDirectory(object):
         self.parsers = []
         self.hosts = {}
         self.groups = {}
+ 
         for i in self.names:
+            
             if i.endswith("~") or i.endswith(".orig") or i.endswith(".bak"):
                 continue
+            if i.endswith(".ini"):
+                # configuration file for an inventory script
+                continue
             if i.endswith(".retry"):
                 # this file is generated on a failed playbook and should only be
                 # used when run specifically