update file mod time test

Author: chrissimpkins

tests/test_utils.py

@@ -16,7 +16,6 @@ def test_file_exists_false():
 
 def test_get_file_modtime():
     modtime = get_file_modtime(os.path.join("tests", "testfiles", "test.txt"))
-    assert modtime.startswith("2019-09-0") is True
     regex = re.compile(r"""\d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}\.\d+[-+]\d{2}:\d{2}""")
     assert regex.fullmatch(modtime) is not None