my hook, allow all user can edit comment ( subscriber )

gistfile1.php

//Trick allow user subscriber can edit comment
function nex_update_cap($allcaps){
	//print_r($allcaps);
	global $comment;
	if( !empty($comment) ){
		global $current_user;

		if( $current_user->ID == $comment->user_id  ){
			$allcaps['edit_others_posts'] = 1;
			$allcaps['edit_published_posts'] = 1;
		}
	}
	return $allcaps;
}
add_filter('user_has_cap', 'nex_update_cap');