Fix hotstart_file @Property method

openmdao/drivers/pyoptsparse_driver.py

@@ -306,7 +306,7 @@ def hotstart_file(self):
         """
         warn_deprecation("The 'hotstart_file' attribute is deprecated. "
                          "Use the 'hotstart_file' option instead.")
-        return self.options['hist_file']
+        return self.options['hotstart_file']
 
     @hotstart_file.setter
     def hotstart_file(self, file_name):