-will replace the original file with the new MIME message. It will rename
-the original file to start with the `,' character and end with the
-string `.orig', e.g., if you are editing the file `draft',
-it will be renamed to `,draft.orig'. This allows you to easily
+will replace the original file with the new MIME message.
+It will preserve the original file under the same name with `.orig'
+appended.
+E.g., if you are editing the file `draft', its original contents
+it will be preserved as `draft.orig'. This allows you to easily