[Toybox] [PATCH] host: fix duplicate strings.

[enh]

Fixes #396 and theoretically the same bug but for AAAA records, though
in practice `toybox host www.google.com` isn't showing me AAAA records
like `host www.google.com` does.
---
 toys/net/host.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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