Fixed typo in tests/migrations/test_operations.py

        project_state = self.set_up_test_model("test_runsql")

        # Create the operation

        operation = migrations.RunSQL(

            # Use a multi-line string with a commment to test splitting on SQLite and MySQL respectively

            # Use a multi-line string with a comment to test splitting on SQLite and MySQL respectively

            "CREATE TABLE i_love_ponies (id int, special_thing int);\n"

            "INSERT INTO i_love_ponies (id, special_thing) VALUES (1, 42); -- this is magic!\n"

            "INSERT INTO i_love_ponies (id, special_thing) VALUES (2, 51);\n",