auto squelch quirk

[ChodTheWacko]

Hello,

I've noticed that if you identify an item which you had already marked for squelch, then the item vanishes (since it is squelched), but it doesn't show up in the squelch menu either, so you (kind of) can't toggle squelch on it later.

This can happen two ways:
1) If you turn on auto quality squelch (bad amulets)
2) If you load squelch settings.
I modified my angband source such that you can save squelch settings and load them. It's kinda nice, outside of this particular problem.

- Frank