Overlapping messages displayed when trying to enter a vehicle position the player is not qualified for

[Colin Basnett]

Looks like two nearly identical messages are displayed here. Just speculating, but this bug might have existed before but we never noticed because the messages were identical.

[Matt Hands]

I've fixed this locally and will commit, probably tomorrow now.

[Matt Hands]

Fixed in commit 6d09c80.

Functions calling DenyEntry() to display a vehicle message were using ROVehicleMessage, while in other places DHVehicleMessage was being used. The slightly different text in the 2 versions caused the overlap.

Added a new DisplayVehicleMessage() function in the vehicle classes, using the DH message. It's also a bit smarter, requiring less input and adding a bPassController option. And its name is more generic, avoiding situations where DenyEntry() was used to deny exit.