Nothing i'd worry about. It does look like some sun burn. But worse case scenario you just cut off those parts of the leaves with the spotting at least an inch bellow the areas of spotting with a sterilized cutting tool and you're good to go!
If it is you do cut off those parts, just dab some cinnamon on the open "plant wound" to prevent any bacteria or fungus.
Last edited by CR7cristiano; 10-16-2012 at 04:29 AM..