Fix "could not load message" error on valid empty message body (#1489228)

Aleksander Machniak

2013-07-08 8acf6204b1b56388cab8fc3db67b686fb950ba0e

 program/lib/Roundcube/rcube_imap_generic.php

@@ -2543,7 +2543,11 @@
                $prev  = '';
                $found = true;

                while ($bytes > 0) {
                // empty body
                if (!$bytes) {
                    $result = '';
                }
                else while ($bytes > 0) {
                    $line = $this->readLine(8192);

                    if ($line === NULL) {