[REPOST PATCH xauth] Don't crash when running past the end of the chain

[Mouse]

>> [PATCH xauth] Look for FamilyLocal if inet or inet6 address is loopback

Based solely on this description, I'd say this is a "maybe".

If the address came from resolving a name, as in "xhost +localhost",
then I like this.  But if the address was specified directly, as in
"xhost +::1", then I'd go so far as to say that adding FamilyLocal, or,
worse, replacing it with FamilyLocal, is a bug.

Though, as always, that opinion is probably worth what you paid for it.

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