Replace Syscall with x/sys/unix.IoctlSetWinsize

[niten94]

There are platforms where SYS_IOCTL is not defined probably because libc functions have to be used. Reasons why Syscall cannot be used in any platform may be added or changed but they would be handled in x/sys/unix and Go source code, so the call is replaced in this pull request.

Small unrelated style changes were also done in other commits.

Edit: The code in the orgnanization repository only is changed, so the issues in the old fork are not closed with this pull request now.

[JoeKar]

Looks good, in case it works.
Should we go to v0.31.0 now?

[niten94]

I tested the pull request on OpenIndiana (illumos distribution) last week but I was able to cross-compile and run Micro.

Should we go to v0.31.0 now?

I could update it, but I do not know if dependency packages like x/sys where there aren't much changes would usually be updated in Go software. The minimum Go version is newer than that of Micro, so I think it is probably better to not update it.

[JoeKar]

The minimum Go version is newer than that of Micro, so I think it is probably better to not update it.

Good point.
Then we keep it as proposed. 👍

[JoeKar]

@dmaluka:
Any complains?
When we pick this one up within micro, then it's the first step towards *BSD support again.
We then just need micro-editor/tcell#2 too.

[dmaluka]

LGTM.

[dmaluka]

4be3967 has reminded me that we ought to do the same in micro... Uploaded zyedidia/micro#3704