django-manage: use django.conf.settings in _applist

src/_manage.py

@@ -224,10 +224,11 @@ _managepy-commands() {
 _applist() {
   local line
   local -a apps
-  _call_program help-command "python -c \"import os.path as op, re, settings, sys;\\
+  # NOTE: this could use "$_managepy_cmd diffsettings --all", but that's slower.
+  _call_program help-command "python -c \"import os.path as op, re, django.conf, sys;\\
                                           bn=op.basename(op.abspath(op.curdir));[sys\\
                                           .stdout.write(str(re.sub(r'^%s\.(.*?)$' %
-                                          bn, r'\1', i)) + '\n') for i in settings.\\
+                                          bn, r'\1', i)) + '\n') for i in django.conf.settings.\\
                                           INSTALLED_APPS if re.match(r'^%s' % bn, i)]\"" \
                              | while read -A line; do apps=($line $apps) done
   _values 'Application' $apps && ret=0