Fix noalias violation in select call

Author: nikic

sapi/cli/php_cli.c

@@ -236,19 +236,18 @@ static void print_extensions(void) /* {{{ */
 
 static inline int sapi_cli_select(php_socket_t fd)
 {
-	fd_set wfd, dfd;
+	fd_set wfd;
 	struct timeval tv;
 	int ret;
 
 	FD_ZERO(&wfd);
-	FD_ZERO(&dfd);
 
 	PHP_SAFE_FD_SET(fd, &wfd);
 
 	tv.tv_sec = (long)FG(default_socket_timeout);
 	tv.tv_usec = 0;
 
-	ret = php_select(fd+1, &dfd, &wfd, &dfd, &tv);
+	ret = php_select(fd+1, NULL, &wfd, NULL, &tv);
 
 	return ret != -1;
 }