test_cmd_line_script: format paths with ascii() instead of repr()
test_cmd_line_script: format paths with ascii() instead of repr()

Fix the test if the native filesystem encoding is not utf-8 (eg. cp1250 on
Windows).

sk-/python2.7-type-annotator,sk-/python2.7-type-annotator,sk-/python2.7-type-annotator