Installing into D8, DB requirements fail using non-standard port for MySQL

Starting to work with CiviCRM and Drupal 8, testing 4.7 master against Drupal 8.2.5

I tried to install on my lcoalhost, where MySQL is using a non-standard port....

The requirements checks in the civicrm.install file fail with a cannot find host error.

I figured out how to make it go on for my situation, but I need to take a look and make sure this is a general solution...

see civicrm_requirements()
around line 89
had to comment out:
$db_config['host'] = "{$db_config['host']}:{$db_config['port']}";

It looks as in the method checkMysqlConnection() in /Civi/Install/Requirements.php
calls@mysql_connect(), and this works best without the port, at least on my config....

Will make a PR after some additional testing....