overwrite the text on Strong Passwords plugin

custom.php

<?php

add_action( 'init', 'switch_my_pmpro_password_notice' );
function switch_my_pmpro_password_notice() {
	if ( has_filter( 'pmpro_checkout_after_password', 'pmprosp_pmpro_checkout_after_password' ) ) {
		remove_filter( 'pmpro_checkout_after_password', 'pmprosp_pmpro_checkout_after_password', 1 );
		add_filter( 'pmpro_checkout_after_password', 'my_pmprosp_pmpro_checkout_after_password', 1 );
	}
}
function my_pmprosp_pmpro_checkout_after_password() {
	?>
	<div id="pmprosp-container"></div>
	<?php
	echo '<small id="pmprosp-password-notice">Note: The password must contain:<br />
    – 8 characters<br />
    – 1 upper case letter<br />
    – 1 lower case letter<br />
    – 1 number<br />
    – 1 special character<br />
    If your password does not contain the above it will be rejected for security reasons.</small>';
}