Made OnDeleteTests.test_protect() assert more specific ProtectedError.
Made OnDeleteTests.test_protect() assert more specific ProtectedError.

rsalmaso/django,atul-bhouraskar/django,rsalmaso/django,rsalmaso/django,django/django,atul-bhouraskar/django,blighj/django,auvipy/django,koordinates/django,django/django,manhhomienbienthuy/django,apollo13/django,claudep/django,pauloxnet/django,manhhomienbienthuy/django,atul-bhouraskar/django,MarkusH/django,theo-l/django,django/django,auvipy/django,freakboy3742/django,shaib/django,claudep/django,freakboy3742/django,apollo13/django,elena/django,googleinterns/django,kaedroho/django,wkschwartz/django,ghickman/django,elena/django,solarissmoke/django,shaib/django,wkschwartz/django,blighj/django,theo-l/django,takis/django,ghickman/django,dsanders11/django,pauloxnet/django,auvipy/django,koordinates/django,felixxm/django,freakboy3742/django,apollo13/django,pauloxnet/django,claudep/django,theo-l/django,dsanders11/django,koordinates/django,felixxm/django,monetate/django,adamchainz/django,elena/django,adamchainz/django,atul-bhouraskar/django,solarissmoke/django,takis/django,elena/django,rsalmaso/django,theo-l/django,ghickman/django,manhhomienbienthuy/django,solarissmoke/django,adamchainz/django,MarkusH/django,googleinterns/django,shaib/django,wkschwartz/django,shaib/django,dsanders11/django,felixxm/django,kaedroho/django,solarissmoke/django,MarkusH/django,monetate/django,googleinterns/django,dsanders11/django,monetate/django,googleinterns/django,MarkusH/django,django/django,kaedroho/django,ghickman/django,blighj/django,adamchainz/django,claudep/django,felixxm/django,apollo13/django,blighj/django,monetate/django,takis/django,manhhomienbienthuy/django,pauloxnet/django,wkschwartz/django,takis/django,auvipy/django,koordinates/django