Change "Enter Title Here" text in WordPress Custom Post Types

gistfile1.php

<?php

add_filter( 'enter_title_here', 'hwp_enter_title_here' );
function hwp_enter_title_here( $title ){
	$screen = get_current_screen();

	if ( 'custom_post_type' == $screen->post_type ) {
		$title = 'Custom Post Type Title Text';
	}

	return $title;
}

?>