require open-uri when loading http template

Author: sshaw

lib/thor/actions.rb

@@ -217,6 +217,7 @@ def apply(path, config = {})
       shell.padding += 1 if verbose
 
       contents = if is_uri
+        require "open-uri"
         open(path, "Accept" => "application/x-thor-template", &:read)
       else
         open(path, &:read)