lib/image_optim/worker/jhead.rb in image_optim-0.13.3 vs lib/image_optim/worker/jhead.rb in image_optim-0.14.0

@@ -1,14 +1,19 @@
 require 'image_optim/worker'
 require 'exifr'
 
 class ImageOptim
   class Worker
+    # http://www.sentex.net/~mwandel/jhead/
+    #
+    # Jhead internally uses jpegtran which should be on path
     class Jhead < Worker
+      # Works on jpegs
       def image_formats
         [:jpeg]
       end
 
+      # Run first [-10]
       def run_order
         -10
       end
 
       def optimize(src, dst)