Align fauna local error messaging casing with command argument casing for 'host-port'

[cleve-fauna]

Problem

Error messages in fauna local refer to hostPort. Our command documents host-port. Although --hostPort is acceptable, updating the error messages to refer to host-port for consistency.

Solution

Although --hostPort is acceptable, updating the error messages to refer to host-port for consistency.

Result

More consistent text.

Testing

Ran the tests