Fix serialization

Was putting new data in the front of the message instead of the end.
This mismatched with how I was deserializing the messages

guestfs-inspectd.c

@@ -109,6 +109,7 @@ static void *worker_task(zsock_t *pipe, char *disk_path) {
     printf("Size: %zu\tContent size: %zu\n", zmsg_size(msg), zmsg_content_size(msg));
     struct guestfs_inpsect_command *command = zmsg_to_command(msg);
     printf("Name: %s\n", command->name);
+    printf("path: %s\n", command->args.ls.paths[0]);
 
     free(command);