[Runtime Issue]: x86 savegames and demos not compatible with x64

### Build Version

0e55dee0dec22b2895f14beb0c789bbbd489d5c3

### Operating System Environment

- [ ] Microsoft Windows (32-bit)
- [ ] Microsoft Windows (64-bit)
- [ ] Mac OS X
- [X] Linux (specify distribution and version below)

### CPU Environment

- [ ] x86 (32-bit Intel/AMD)
- [X] x86\_64 (64-bit Intel/AMD)
- [ ] ARM (32-bit)
- [ ] ARM64 (64-bit; sometimes called AArch64)
- [ ] Other (RISC V, PPC...)

### Game Modes Affected

- [ ] Single player
- [ ] Anarchy
- [ ] Hyper-Anarchy
- [ ] Robo-Anarchy
- [ ] Team Anarchy
- [ ] Capture the Flag
- [ ] Bounty
- [ ] Entropy
- [ ] Hoard
- [ ] Monsterball
- [ ] Cooperative

### Game Environment

_No response_

### Description

With a fresh CD install I was clicking different menus. I noticed in the View Demo menu I have a file that seems to ship with the game called Secret2.dem. When trying to run that file it will say that "boa not valid" and that the demo file is invalid. While not a show stopper I am not sure to the level of backward compatibility for such files are wanted.

On a side note the line that shows the full path will have the last character cut off.

### Regression Status

I don't know.

### Steps to Reproduce

1. Install game from CD. (Not sure if file is included on digital releases).
2. Go to View Demo menu.
3. Load Secret2.dem (I also don't have access to other demo files so I'm not sure if others will fail).