Merge pull request #6389 from Dunedan/ticket_25420

Fixed #25420 -- Documented bash completion exit code behavior.

django/core/management/__init__.py

@@ -276,7 +276,10 @@ class ManagementUtility(object):
                 if option[1]:
                     opt_label += '='
                 print(opt_label)
-        sys.exit(1)
+        # Exit code of the bash completion function is never passed back to
+        # the user, so it's safe to always exit with 0.
+        # For more details see #25420.
+        sys.exit(0)
 
     def execute(self):
         """