Change Jetpack Protect Bot Challenge Text

jetpack-bot-challenge-text-change.php

/**
 * Change text string for Jetpack Protect Bot Challenge Text
 *
 * @link http://codex.wordpress.org/Plugin_API/Filter_Reference/gettext
 */
function digisavvy_change_humanity_string( $translated_text, $text, $domain ) {
	switch ( $translated_text ) {
		case 'Prove your humanity:' :
			$translated_text = __( 'Prove you\'re not a bot', 'jetpack' );
			break;
	}
	return $translated_text;
}
add_filter( 'gettext', 'digisavvy_change_humanity_string', 20, 3 );