style(parsing/sources): using the same error message for empty args

- This message is the same of the ping command (inetutils 2.0).

parsing/sources/parsing.c

@@ -6,7 +6,7 @@
 /*   By: rparodi <rparodi@student.42.fr>            +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2026/03/23 14:49:36 by rparodi           #+#    #+#             */
-/*   Updated: 2026/03/30 15:53:23 by rparodi          ###   ########.fr       */
+/*   Updated: 2026/03/30 19:07:53 by rparodi          ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -29,7 +29,7 @@ static char *_find_target(int argc, char **argv) {
 		}
 	}
 
-	if (target == NULL || target[0] == '\0') {
+	if (target == NULL) {
 		ERROR_LOG("ft_ping: missing host operand\nTry 'ft_ping --help' or 'ft_ping --usage' for more information.");
 		exit(64);
 	}