Fix xp_inet_pton: was just writing 0x02 (address family)to 'dst', always

Tried using this function in a new project and didn't work. My guess: it wasn't tested. <looks at Deuce>
14 jobs for dailybuild_linux-x64 in 9 minutes and 24 seconds (queued for 12 seconds)
Status Job ID Name Coverage
  Build
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jsdoor-freebsd

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sbbs-linux

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sexpots-freebsd

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sexpots-linux

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syncdraw-freebsd

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syncdraw-linux

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syncterm-freebsd

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syncterm-linux

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syncterm-windows

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