podman machine: do not join userns
The go logic already prevents podman from joining the userns for machine
commands but the c shortcut code did not.
[NO TESTS NEEDED]
Fixes
@@ -212,6 +212,7 @@ can_use_shortcut ()
continue;
if (strcmp (argv[argc], "mount") == 0
+ || strcmp (argv[argc], "machine") == 0
|| strcmp (argv[argc], "search") == 0
|| (strcmp (argv[argc], "system") == 0 && argv[argc+1] && strcmp (argv[argc+1], "service") != 0))
{
