[PATCH 3/5] qapi/machine: Clarify query-uuid value when none has been specified

[Markus Armbruster]

When no UUID has been specified, query-uuid returns

    {"UUID": "00000000-0000-0000-0000-000000000000"}

The doc comment calls this "a null UUID", which I find less than
clear.  Change it to "an all-zero UUID".

Signed-off-by: Markus Armbruster <armbru@redhat.com>
---
 qapi/machine.json | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/qapi/machine.json b/qapi/machine.json
index 50ff102d56..f40427f21a 100644
--- a/qapi/machine.json
+++ b/qapi/machine.json
@@ -305,9 +305,8 @@
 #
 # Since: 0.14
 #
-# .. note:: If no UUID was specified for the guest, a null UUID is
-#    returned.
-#
+# .. note:: If no UUID was specified for the guest, an all-zero UUID
+#    is returned.
 ##
 { 'struct': 'UuidInfo', 'data': {'UUID': 'str'} }
 
-- 
2.45.0