Fix calls to string:substr
Fix calls to string:substr

frkarl/ChicagoBoss,lamptt/ChicagoBoss,7i11/ChicagoBoss,danikp/ChicagoBoss,solatis/ChicagoBoss,ChicagoBoss/ChicagoBoss,yunkai/ChicagoBoss,aherranz/ChicagoBoss,uselessd/ChicagoBoss,danikp/ChicagoBoss,uselessd/ChicagoBoss,synlay/ChicagoBoss,aherranz/ChicagoBoss,lamptt/ChicagoBoss,7i11/ChicagoBoss,synlay/ChicagoBoss,campanja/ChicagoBoss,powermedia/ChicagoBoss,solatis/ChicagoBoss,ChicagoBoss/ChicagoBoss,powermedia/ChicagoBoss,frkarl/ChicagoBoss,yunkai/ChicagoBoss