test: fix test-http-status-reason-invalid-chars

Use port 0 instead of common.PORT, and use server address
instead of localhost to follow writing test guideline.
This is a part of Code And Learn at NodeFest 2016 Challenge in Tokyo.

PR-URL: https://github.com/nodejs/node/pull/9572


Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>
Reviewed-By: Shigeki Ohtsu <ohtsu@iij.ad.jp>
Reviewed-By: James M Snell <jasnell@gmail.com>