Stop writing files with \r\n in windows.

Output the line endings that were provided. If people want \r\n they can
use those. This removes the chance of hard to debug issues around line
endings being transparently switched on a user.

Refs #7751

src/Console/Shell.php

@@ -736,8 +736,7 @@ class Shell
 
         $File = new File($path, true);
         if ($File->exists() && $File->writable()) {
-            $data = $File->prepare($contents);
-            $File->write($data);
+            $File->write($contents);
             $this->_io->out(sprintf('<success>Wrote</success> `%s`', $path));
             return true;
         }