more orctown-related follow-up

Under some circumstances, when all the marauding orcs belonging to the
horde operating within the gnomish mines had been provided with their
spoils and placed appropriately, there could still be some pillaged stuff
left-over on the migrating obj chain. Orcs created by regular monster
generation elsewhere would then be susceptable to receiving that stuff
until it was used up. That part is fine, except that the orcs were then
being named as part of the same horde operating within the mines. Now
they will no longer be named as part of the Gnomish Mines horde.

Mythos: There's a good chance that these particular orcs received the
stolen goods from the Gnomish Mines horde.

doc/fixes36.2

@@ -231,6 +231,8 @@ setting the inverse attribute for gold had the space before "$:"
 	getting highlighted along with the gold field
 sortloot segfaulted when filtering a subset of items (seen with 'A' command)
 orctown: prevent Bad fruit #0 and some minor tuning
+orctown: orcs beyond the mines were being given any left-over booty and named
+	as part of the same marauding gang operating within the mines
 make long extended commands list be more navigable
 simplify #wizidentify; don't rely on having bold menu entries
 ensure tmp_at() structures are initialized for all code paths when swallowed