document array out of bounds bug in z_parameter

[RevoSucks]

Not sure if this is the best way to format this bug description.

For one or two frames, the hour value printed disappears when switching between 11 and 12 on the first and second nights. Turns out this is actually a bug, and on GCC ROMs will crash the game due to the texture being invalid. By pure happenstance, it doesnt crash on vanilla.

[jpburnett]

Jenkins is mad due to formatting

[AngheloAlf]

Closing this PR since it introduces a bug fix instead of a way to preserve the original UB behavior. There hasn't been any seemingly intention to change this fact or to address the reviews. Because of this I'll close the PR. Thanks for pointing out this issue, but we'll look for a different way to handle it in the future.