src/PEAR/PackageFile/v1.php
function addMaintainer($role, $handle, $name, $email)
    {
        $this->_packageInfo['maintainers'][] =
            array('handle' => $handle, 'role' => $role, 'email' => $email, 'name' => $name);
        $this->_isValid = false;
    }
function addMaintainer($role, $handle, $name, $email)
    {
        $this->_packageInfo['maintainers'][] =
            array('handle' => $handle, 'role' => $role, 'email' => $email, 'name' => $name);
        $this->_isValid = false;
    }
Adds a new maintainer - no checking of duplicates is performed, use
updatemaintainer for that purpose.