Fix an incorrect SLF4J logger call
Fix an incorrect SLF4J logger call

The format string was missing a formatting anchor.

This issue was found by SLF4J Helper for NetBeans IDE:
http://plugins.netbeans.org/plugin/72557/

jonbullock/jbake,jbake-org/jbake,jbake-org/jbake,ancho/jbake,jonbullock/jbake,ancho/jbake