ListenerURL returns Hostname.local instead of LocalHostname.local

Edit: After Ming Ho helped me with information to reproduce the issue, updating the description

When the mac machine has HostName as well as LocalHostname, API returns `<hostname>+.local` as listener URL

Steps:
1. `scutil --set LocalHostName`, set it to LocalHostName
2. `scutil --set HostName`, set it to HostName

couchbase-lite-ios 20:09:40 $ scutil --set LocalHostName

LocalHostName [JayMachine]: LocalHostName

couchbase-lite-ios 20:09:53 $ scutil --get LocalHostName

LocalHostName

couchbase-lite-ios 20:14:59 $ scutil --set HostName

HostName [JayHostName]: HostName

couchbase-lite-ios 20:15:17 $ scutil --get HostName

HostName

3. Start the listener in iPhone simulator on same mac
4. Check `listener.url` contains `wss://hostname.local:4985/db`

2020-09-08 20:11:44.917955-0700 CBL_EE_Tests[61514:2035910] *** URL: (

    "wss://HostName.local:4985/otherdb",

    ..... 

)

5. Check the System Preferences > Sharing , you will see the <localhost>.local as local network name.

Expected result:
`listsner.url` should contain `wss://LocalHostName.local:4985/otherdb` instead of `wss://HostName.local:4985/otherdb`