edit-mailbox.php: Closes #1865124 - too short error was not telling the user the minimum size

git-svn-id: https://svn.code.sf.net/p/postfixadmin/code/trunk@287 a1433add-5e2c-0410-b055-b7f2511e0802

edit-mailbox.php

@@ -97,7 +97,7 @@ if ($_SERVER['REQUEST_METHOD'] == "POST")
       $min_length = $CONF['min_password_length'];
 
       if($min_length > 0 && strlen($fPassword) < $min_length) {
-         flash_error($PALANG['pPasswordTooShort']);
+         flash_error(sprintf($PALANG['pPasswordTooShort'], $CONF['min_password_length']));
          $error = 1;
       }
       if($fPassword == $fPassword2) {