Improve version check

... to not break on e.g. 4.0

Change-Id: I5b93f6138a5ca85891d2d60beca098b6bcfc15d1
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/134435
Tested-by: Jenkins
Reviewed-by: Mike Kaganski <mike.kaganski@collabora.com>

uitest/test_main.py

@@ -78,7 +78,7 @@ def add_tests_for_file(test_file, test_suite):
 
     loader = importlib.machinery.SourceFileLoader(module_name, test_file)
     # exec_module was only introduced in 3.4
-    if sys.version_info[1] < 4:
+    if sys.version_info < (3,4):
         mod = loader.load_module()
     else:
         mod = types.ModuleType(loader.name)