util/sockopt: order includes alphabetically
Reorder includes to be in alphabetical order.
*/
#include <c-macro.h>
-#include <stdlib.h>
-#include <sys/socket.h>
#include <grp.h>
#include <pwd.h>
+#include <stdlib.h>
+#include <sys/socket.h>
#include "util/error.h"
#include "util/sockopt.h"
