now that gcc 11's static analyzer looks at array bounds in arguments

like "char ip[4]", let's be more strict about that

socket/socket_accept4_setcloseonexec.c

@@ -7,6 +7,6 @@
 #include "windoze.h"
 #include "socket.h"
 
-int socket_accept4_makenonblocking(int s,char *ip,uint16 *port) {
+int socket_accept4_makenonblocking(int s,char ip[4],uint16 *port) {
   return socket_accept4_flags(s,ip,port,SOCKET_CLOEXEC);
 }