[PATCH v2 13/18] tests/functional: don't try to wait for the empty string

["Daniel P. Berrangé" <berrange@redhat.com>]

Telling exec_command_wand_wait_for_pattern to wait for the empty
string does not make any conceptual sense, as a check for empty
string will always succeed. It makes even less sense when followed
by a call to wait_for_console_pattern() with a real match.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
---
 tests/functional/test_virtio_gpu.py | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/tests/functional/test_virtio_gpu.py b/tests/functional/test_virtio_gpu.py
index 441cbdcf2d..d5027487ac 100755
--- a/tests/functional/test_virtio_gpu.py
+++ b/tests/functional/test_virtio_gpu.py
@@ -80,9 +80,8 @@ def test_virtio_vga_virgl(self):
 
         self.wait_for_console_pattern("as init process")
         exec_command_and_wait_for_pattern(
-            self, "/usr/sbin/modprobe virtio_gpu", ""
+            self, "/usr/sbin/modprobe virtio_gpu", "features: +virgl +edid"
         )
-        self.wait_for_console_pattern("features: +virgl +edid")
 
     def test_vhost_user_vga_virgl(self):
         # FIXME: should check presence of vhost-user-gpu, virgl, memfd etc
-- 
2.46.0