<oo-diagnostics> bug 1046202 test_broker_httpd_error_log

https://bugzilla.redhat.com/show_bug.cgi?id=1046202
just get the log file from the error message instead of trying to
construct it.
Merge pull request #4409 from sosiouxme/bug1046202

Merged by openshift-bot
Fixed formatting of repo info & added same to comp guide