Add test_pep277 to the expected skips on Linux. (This test seems to

be skipped everywhere except on Windows NT and descendants, but I'm
only going to add it to the skip list for the platform I can test.)

Lib/test/regrtest.py

@@ -543,6 +543,7 @@ _expectations = {
         test_largefile
         test_nis
         test_ntpath
+        test_pep277
         test_socket_ssl
         test_socketserver
         test_sunaudiodev