Change parser regexp for /var/log/apache2/keystone.access.log in td-agent config file.

In case of two IP's in http_x_forwarded_for_address field in /var/log/apache2/keystone.access.log
 td-agent can't parse logs from keystone-wsgi and can't send it to Elastic.

Fixes-bug: PROD-36420
Change-Id: I8c49fe42399d42f226206c9c807d9ab115b69bef
2 files changed