qemu-nbd: Update version string

qemu-io and qemu-img already mirror the qemu version string,
time to make qemu-nbd do the same.

Reported-by: 陳培泓 <pahome.chen@mirlab.org>
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20170721135047.25005-2-eblake@redhat.com>
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
diff --git a/qemu-nbd.c b/qemu-nbd.c
index 78d05be..1086934 100644
--- a/qemu-nbd.c
+++ b/qemu-nbd.c
@@ -36,6 +36,7 @@
 #include "io/channel-socket.h"
 #include "crypto/init.h"
 #include "trace/control.h"
+#include "qemu-version.h"
 
 #include <getopt.h>
 #include <libgen.h>
@@ -129,10 +130,10 @@
 static void version(const char *name)
 {
     printf(
-"%s version 0.0.1\n"
+"%s " QEMU_VERSION QEMU_PKGVERSION "\n"
 "Written by Anthony Liguori.\n"
 "\n"
-"Copyright (C) 2006 Anthony Liguori <anthony@codemonkey.ws>.\n"
+QEMU_COPYRIGHT "\n"
 "This is free software; see the source for copying conditions.  There is NO\n"
 "warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n"
     , name);