Fix typo that was preventing Binding.stop() from working.
Fix typo that was preventing Binding.stop() from working.

Enyo-DCO-1.1-Signed-Off-By: Gray Norton (gray.norton@lge.com)

zefsolutions/enyo,PKRoma/enyo,zefsolutions/enyo,soapdog/enyo,enyojs/enyo,bright-sparks/enyo,beni55/enyo,mcanthony/enyo,beni55/enyo,enyojs/enyo,kustomzone/enyo,wikieswan/enyo,kustomzone/enyo,PKRoma/enyo,wikieswan/enyo,bright-sparks/enyo,mcanthony/enyo,soapdog/enyo