CO-CODE Hugo-Luke

+ last_exit_status set/get functions for here_doc
+ TODO : replace all occurences of last_exit_status
+ **environ fix
+ builtin_unset() fix

srcs/free.c

@@ -14,10 +14,12 @@
 
 int	free_exit(t_all *c, int exit_status)
 {
+	extern char	**environ;
+
 	free(c->prompt_base);
 	free(c->prompt);
 	ft_lstclear((t_list **)&c->token_list, free);
-//	ft_free_2d_arr(c->envp);
+	ft_free_2d_arr(environ);
 	ft_free_2d_arr(c->path);
 	free_pipeline(&c->cmd_arr);
 	//if (c->termios_changed)