Reorder statements: printf clobbers errno value

examples/udgram/udgram_client.c

@@ -124,7 +124,6 @@ int client_main(int argc, char *argv[])
       printf("client: %d. Sending %d bytes\n", offset, SENDSIZE);
       nbytes = sendto(sockfd, outbuf, SENDSIZE, 0,
                       (struct sockaddr *)&server, addrlen);
-      printf("client: %d. Sent %d bytes\n", offset, nbytes);
 
       if (nbytes < 0)
         {
@@ -140,6 +139,8 @@ int client_main(int argc, char *argv[])
           return 1;
         }
 
+      printf("client: %d. Sent %d bytes\n", offset, nbytes);
+
       /* Now, sleep a bit.  No packets should be dropped due to overrunning
        * the server.
        */