Sure. I'll do that in the next version, too. In the mean time, I usually just rename them to start with a lowercase letter.

Edit: Oh, and they still get executed because I was initially having intermittent problems with executing files directly (it may have something to do with them happening so early in the startup process), so I changed preinit before the initial release to run the scripts as arguments to /bin/sh, which is also why they must be scripts. Didn't think to check for executability, as Solaris (which is what I based this on) doesn't check, either. But it makes sense, and I can add it.