chef-server-ctl test will fail if HOSTNAME has Uppercase letters

[root@Localhost oc-chef-pedant]# hostname -f
ALEX

# chef-server-ctl test
Configuring logging...
Creating platform...
Configured URL: https://ALEX
Creating org pedant_testorg_Localhost_5200
/opt/opscode/embedded/service/oc-chef-pedant/lib/pedant/platform.rb:336:in `block in create_org': Bad error code 400 from create org: {"error":["Field 'name' invalid"]} (RuntimeError)
    from /opt/opscode/embedded/service/oc-chef-pedant/lib/pedant/platform.rb:321:in `times'
    from /opt/opscode/embedded/service/oc-chef-pedant/lib/pedant/platform.rb:321:in `create_org'
    from /opt/opscode/embedded/service/oc-chef-pedant/lib/pedant/platform.rb:123:in `org_from_config'
    from /opt/opscode/embedded/service/oc-chef-pedant/lib/pedant/platform.rb:42:in `initialize'
    from /opt/opscode/embedded/service/oc-chef-pedant/lib/pedant.rb:79:in `new'
    from /opt/opscode/embedded/service/oc-chef-pedant/lib/pedant.rb:79:in `create_platform'
    from /opt/opscode/embedded/service/oc-chef-pedant/lib/pedant.rb:58:in `setup'
    from ./bin/oc-chef-pedant:10:in `<main>'

also: https://getchef.zendesk.com/agent/tickets/8620

Reproduce the failure with an uppercase HOSTNAME and start in lib/pedant/platform.rb around lines 321 and 336, following setup from lib/pedant.rb. Confirm that chef-server-ctl test completes successfully and the test organization is created when the hostname contains uppercase letters.