Fix issue where msgexport.sh printed the message to STDOUT instead of a file (#1489634)

CHANGELOG

@@ -9,6 +9,7 @@ CHANGELOG Roundcube Webmail
 - Fix security issue in DomainFactory driver of Password plugin
 - Fix invalid X-Draft-Info on forwarded message draft (#1489587)
 - Fix regression in handling of 'attachments' result in message_compose hook (#1489627)
+- Fix issue where msgexport.sh printed the message to STDOUT instead of a file (#1489634)
 
 RELEASE 1.0-rc
 --------------

bin/msgexport.sh

@@ -58,7 +58,7 @@ function export_mailbox($mbox, $filename)
 		$from = current(rcube_mime::decode_address_list($headers->from, 1, false));
 
 		fwrite($out, sprintf("From %s %s UID %d\n", $from['mailto'], $headers->date, $headers->uid));
-		fwrite($out, $IMAP->print_raw_body($headers->uid));
+		$IMAP->get_raw_body($headers->uid, $out);
 		fwrite($out, "\n\n\n");
 
 		progress_update($i+1, $count);