Display error messages for failed manageby in service-add/remove-host.

Fix #830

ipalib/plugins/baseldap.py

@@ -137,6 +137,9 @@ global_output_params = (
     Str('memberuser',
         label=_('Failed users/groups'),
     ),
+    Str('managedby',
+        label=_('Failed managedby'),
+    ),
     Str('failed',
         label=_('Failed to remove'),
         flags=['suppress_empty'],

ipalib/plugins/host.py

@@ -161,10 +161,6 @@ host_output_params = (
     Str('revocation_reason?',
         label=_('Revocation reason'),
     ),
-    Str('managedby?',
-        label=_('Failed managedby'),
-        flags=['no_create', 'no_update'],
-    )
 )
 
 def validate_ipaddr(ugettext, ipaddr):