[PATCH] docker: fix uid maping with podman

[Tomáš Golembiovský]

Commit 71ebbe09 refactored how uid mapping is performed when invoking
container. It however introduced a bug in the flow when podman is used
caused by wrong variable name.

Signed-off-by: Tomáš Golembiovský <address@hidden>
---
 tests/docker/docker.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/docker/docker.py b/tests/docker/docker.py
index 29613afd48..bc7a470ca2 100755
--- a/tests/docker/docker.py
+++ b/tests/docker/docker.py
@@ -334,7 +334,7 @@ class Docker(object):
             cmd = [ "-u", str(uid) ] + cmd
             # podman requires a bit more fiddling
             if self._command[0] == "podman":
-                argv.insert(0, '--userns=keep-id')
+                cmd.insert(0, '--userns=keep-id')
 
         ret = self._do_check(["run", "--label",
                              "com.qemu.instance.uuid=" + label] + cmd,
-- 
2.23.0