merged from MOODLE_18_STABLE
<div class="loginform">
<div class="form-label"><label for="username"><?php print_string("username") ?></label></div>
<div class="form-input">
- <input type="text" name="username" id="username" size="15" value="<?php p($frm->username) ?>" />
+ <input type="text" name="username" id="username" size="15" value="<?php p($frm->username, true) ?>" />
</div>
<div class="clearer"><!-- --></div>
<div class="form-label"><label for="password"><?php print_string("password") ?></label></div>