[Qemu-block] [PULL 4/8] qemu-nbd: Use program name in error messages

[Eric Blake]

This changes output from:

$ qemu-nbd nosuch
Failed to blk_new_open 'nosuch': Could not open 'nosuch': No such file or 
directory

to something more consistent with qemu-img and qemu:

$ qemu-nbd nosuch
qemu-nbd: Failed to blk_new_open 'nosuch': Could not open 'nosuch': No such 
file or directory

Update the lone affected test to match.  (Hmm - is it sad that we don't
do much testing of expected failures?)

Signed-off-by: Eric Blake <address@hidden>
Reviewed-by: Richard W.M. Jones <address@hidden>
Reviewed-by: Vladimir Sementsov-Ogievskiy <address@hidden>
Message-Id: <address@hidden>
---
 qemu-nbd.c                 | 1 +
 tests/qemu-iotests/233.out | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/qemu-nbd.c b/qemu-nbd.c
index ca7109652e5..e169b839ece 100644
--- a/qemu-nbd.c
+++ b/qemu-nbd.c
@@ -571,6 +571,7 @@ int main(int argc, char **argv)
 #endif

     module_call_init(MODULE_INIT_TRACE);
+    error_set_progname(argv[0]);
     qcrypto_init(&error_fatal);

     module_call_init(MODULE_INIT_QOM);
diff --git a/tests/qemu-iotests/233.out b/tests/qemu-iotests/233.out
index 94acd9b9479..5f416721b03 100644
--- a/tests/qemu-iotests/233.out
+++ b/tests/qemu-iotests/233.out
@@ -27,7 +27,7 @@ virtual size: 64M (67108864 bytes)
 disk size: unavailable

 == check TLS with different CA fails ==
-option negotiation failed: Verify failed: No certificate was found.
+qemu-nbd: option negotiation failed: Verify failed: No certificate was found.
 qemu-img: Could not open 'driver=nbd,host=127.0.0.1,port=PORT,tls-creds=tls0': 
The certificate hasn't got a known issuer

 == perform I/O over TLS ==
-- 
2.20.1