Undefined method FeedsImporter::log()

I have discovered that feedsimporter fails during cron on my 7.16 drupal.

I get the following error:

Fatal error: Call to undefined method FeedsImporter::log() in /home/site/public_html/sites/all/modules/feeds/feeds.module on line 152

I have substituted line 152 with a normal watchdog_exception() as a workaround, but that is probably not the way to go..

What is the way to go?