remove trailing whitespace

Leon Rische · Leon Rische · commit 2d84d265405f · 2016-03-03T15:21:21.000+01:00
diff --git a/01_introduction_to_algorithms/ruby/01_binary_search.rb b/01_introduction_to_algorithms/ruby/01_binary_search.rb
@@ -14,7 +14,7 @@ def binary_search(list, item)
       low = mid + 1
     end
   end
-  
+
   return nil
 end
 
