Django 1.8 doesn't support dry run anymore

playbooks/edx-east/edxapp_migrate.yml

@@ -3,7 +3,7 @@
   sudo: False
   gather_facts: False
   vars:
-    db_dry_run: "--db-dry-run"
+    db_dry_run: "--list"
     syncdb: false
   tasks:
     - name: syncdb

util/jenkins/check-migrations.sh

@@ -48,7 +48,7 @@ fi
 if [[ $db_dry_run == "false" ]]; then
     # Set this to an empty string if db_dry_run is
     # not set.  By default the db_dry_run var is
-    # set to --db-dry-run
+    # set to --list
 
     extra_var_args+=" -e db_dry_run=''"
 else