As suggested by <Someone> to the mailing list, display a message
when you eat a stalker and notice that you became invisible.
make killer reason for various poisioning deaths be more consistent
poison missiles were unintentionally more likely to inflict "deadly poison"
than in pre-3.4.1 releases
+provide feedback when going invisible after eating a stalker
Platform- and/or Interface-Specific Fixes
case PM_STALKER:
if(!Invis) {
set_itimeout(&HInvis, (long)rn1(100, 50));
+ if (!Blind && !BInvis) self_invis_message();
} else {
if (!(HInvis & INTRINSIC)) You_feel("hidden!");
HInvis |= FROMOUTSIDE;