negate_channel.rb in rmagick-2.14.0

- old
+ new

@@ -1,6 +1,6 @@
-#! /usr/local/bin/ruby -w
-require 'RMagick'
+#!/usr/bin/env ruby -w
+require 'rmagick'
 
 # Demonstrate the Image#negate_channel method
 
 img = Magick::Image.read('images/Flower_Hat.jpg').first
 result = img.negate_channel(false, Magick::GreenChannel)