[Issue 23793] std.stdio.openNetwork should be refactored and moved to a different place

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=23793

--- Comment #5 from Witold Baryluk <witold.baryluk+d at gmail.com> ---
> This function was added 13 years ago and barely changed since then, so how long ago are you looking?

You are right. I only noticed this function in std.stdio about a month or two
ago.

But I did not have issue with static linking in the past, so maybe something
else changed, i.e. gdc.

--