[trac756] Fix test

I fixed it in the .py file previously, which didn't survive O:-)

src/lib/python/isc/log/tests/log_console.py.in

@@ -11,5 +11,5 @@ logger.debug(20, MSG_ID, "test", "no output")
 logger.info(MSG_ID, [1, 2, 3, 4], "list")
 logger.warn(DIFFERENT)
 logger.fatal(MSG_ID, 1, 2)
-logger.setSeverity("DEBUG", 99)
+logger.set_severity("DEBUG", 99)
 logger.debug(1, MSG_ID, 2, 3)