server: fixup bug in sending jobs_eta command

We stored nr_running in elapsed_sec, causing ETA to only
be reliable on the client when the job neared completion.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
diff --git a/server.c b/server.c
index 1e2fcd0..9ee7520 100644
--- a/server.c
+++ b/server.c
@@ -463,7 +463,7 @@
 		je->iops[i]	= cpu_to_le32(je->iops[i]);
 	}
 
-	je->elapsed_sec		= cpu_to_le32(je->nr_running);
+	je->elapsed_sec		= cpu_to_le64(je->elapsed_sec);
 	je->eta_sec		= cpu_to_le64(je->eta_sec);
 
 	fio_net_send_cmd(server_fd, FIO_NET_CMD_ETA, je, size, cmd->tag);