examples/rgb_2.rb in u-struct-1.0.0 vs examples/rgb_2.rb in u-struct-1.1.0

@@ -17,11 +17,11 @@
   def initialize(value)
     super(Input[value])
   end
 
   def to_s
-    '%02x' % value
+    format('%02x', value)
   end
 
   def inspect
     "#<RGBNumber #{value}>"
   end
@@ -68,8 +68,8 @@
 puts rgb.inspect
 puts
 
 begin
   RGBColor.new(r: 1, g: -1, b: 255)
-rescue => exception
+rescue Kind::Error => exception
   puts exception # Kind::Error (-1 expected to be a kind of Integer(>= 0 and <= 255))
 end