Changes for version 2.19
- commit aac1b06c1e3b0d73ca964794bab0c444d454ebcc Author: Yasuhiro Matsumoto <firstname.lastname@example.org> Date: Thu May 11 18:40:13 2017 +0900
- don't run command when the port is empty
- Test::TCP do hack on Windows for checking port used.
- But this way always return 0 with succeeded with empty port. This is not expected behavior. So this change fix to call check_port if the port is not defined.
- fixes #60