jshint: fix expected a conditional expression and instead saw an assignment
jshint: fix expected a conditional expression and instead saw an assignment

CartoDB/Windshaft,wsw0108/Windshaft,HydroLogic/Windshaft,HydroLogic/Windshaft,wsw0108/Windshaft,CartoDB/Windshaft,manueltimita/Windshaft,CartoDB/Windshaft,wsw0108/Windshaft,manueltimita/Windshaft,HydroLogic/Windshaft,manueltimita/Windshaft