do not overwrite client side HPN buffer size

[allanjude]

If HPNBufferSize is set in ssh_config, respect that value, rather than blindly overwriting it with the default

[vapier]

instead of doing it this way, i think we should change readconf.c to set the default if it's -1, and then we can delete this clobber logic altogether

[rapier1]

Vapier,

Could you submit a patch for this?

Thanks,
Chris

[allanjude]

Yes, I will do that.