qapi: Fix argument markup in drive-mirror documentation
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240322140910.328840-6-armbru@redhat.com>
diff --git a/qapi/block-core.json b/qapi/block-core.json
index 1874f88..64668b0 100644
--- a/qapi/block-core.json
+++ b/qapi/block-core.json
@@ -2117,7 +2117,7 @@
# Start mirroring a block device's writes to a new destination.
# target specifies the target of the new image. If the file exists,
# or if it is a device, it will be used as the new destination for
-# writes. If it does not exist, a new file will be created. format
+# writes. If it does not exist, a new file will be created. @format
# specifies the format of the mirror image, default is to probe if
# mode='existing', else the format of the source.
#
