Inventory plugins move auto before ini (#44428)

* inventory plugins: try auto before ini

auto plugin should run before ini to avoid ini being able to parse
some plugin configuration YAML files successfully.

* Update comment

comment was added by 2ffe3c42bb but
related code was later removed by
506e6a0b2d.

lib/ansible/config/base.yml

@@ -1442,7 +1442,7 @@ INVENTORY_CACHE_TIMEOUT:
   - {key: cache_timeout, section: inventory}
 INVENTORY_ENABLED:
   name: Active Inventory plugins
-  default: ['host_list', 'script', 'yaml', 'ini', 'toml', 'auto']
+  default: ['host_list', 'script', 'auto', 'yaml', 'ini', 'toml']
   description: List of enabled inventory plugins, it also determines the order in which they are used.
   env: [{name: ANSIBLE_INVENTORY_ENABLED}]
   ini:

lib/ansible/inventory/manager.py

@@ -263,7 +263,7 @@ class InventoryManager(object):
 
                 if plugin_wants:
                     try:
-                        # in case plugin fails 1/2 way we dont want partial inventory
+                        # FIXME in case plugin fails 1/2 way we have partial inventory
                         plugin.parse(self._inventory, self._loader, source, cache=cache)
                         parsed = True
                         display.vvv('Parsed %s inventory source with %s plugin' % (source, plugin_name))