kunit: tool: Print UML command

As for the Qemu command, print the command used to run tests with UML.

Cc: Brendan Higgins <[email protected]>
Cc: David Gow <[email protected]>
Signed-off-by: Mickaël Salaün <[email protected]>
Reviewed-by: David Gow <[email protected]>
Signed-off-by: Shuah Khan <[email protected]>

tools/testing/kunit/kunit_kernel.py

@@ -146,6 +146,7 @@ def start(self, params: List[str], build_dir: str) -> subprocess.Popen:
  """Runs the Linux UML binary. Must be named 'linux'."""
  linux_bin = os.path.join(build_dir, 'linux')
  params.extend(['mem=1G', 'console=tty', 'kunit_shutdown=halt'])
+ print('Running tests with:\n$', linux_bin, ' '.join(shlex.quote(arg) for arg in params))
  return subprocess.Popen([linux_bin] + params,
  stdin=subprocess.PIPE,
  stdout=subprocess.PIPE,