tests: fix style issue of importing order in test-lock.py
test-lock.py is excluded in test-check-module-imports.t, because
import-checker.py reports that some stdlibs are imported after local
silenttestrunner module.
I can not found out any reason why tests/silenttestrunner.py should be
imported before some stdlibs from the point of functionality view.
--- a/tests/test-lock.py Mon Oct 08 10:10:06 2018 +0900
+++ b/tests/test-lock.py Mon Oct 08 10:45:36 2018 +0900
@@ -2,11 +2,12 @@
import copy
import errno
-import silenttestrunner
import tempfile
import types
import unittest
+import silenttestrunner
+
from mercurial import (
encoding,
error,