Sometimes (e.g. when using an external API), a script wants to connect
by name to a server and doesn't care whether IPv4 or IPv6 is used. By
passing the "any_af" option, the first resolved address of any address
family will be used, allowing external-category scripts which used to
fail with -6 to succeed.
Building a string with var = var .. "something" has miserable time
complexities. This commit cleans up a lot of that in scripts, focusing
on packing of data with bin.pack and concatenations within loops.
Additionally, a few instances were replaced with string.rep
On second thought, we should use codes like "us" instead of "United
States" and omit the regision attribute rather than set
region="Unknown". Taking away these attributes until we can figure out
how.
