restore the type of the parameter flags of getnameinfo to c_int

[kolapapa]

Restore the type of the parameter flags of getnameinfo to c_int

At present, all the implementation parameters of getnameinfo flags are of type int, and some constants defined are also of type int. I have seen the implementation of uclibc. The flags values are basically macro definitions, so should we not do this by uclibc alone kind of special treatment.

These several places also define the int type.
https://github.com/rust-lang/libc/blob/master/src/unix/uclibc/mod.rs#L1375

[rust-highfive]

r? @JohnTitor

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[kolapapa]

other question ... how to merge the newest tag to fork version?

[JohnTitor]

This would be a breaking change but given you introduced it recently and it should be reasonable, I'm fine to accept it.
Could you use rebase instead of merge here?

how to merge the newest tag to fork version?

I usually do git pull upstream master (assuming you have upstream).

[JohnTitor]

Thanks!

[JohnTitor]

@bors r+

[bors]

📌 Commit 1f5debf has been approved by JohnTitor

[bors]

⌛ Testing commit 1f5debf with merge 3f9b323...

[bors]

☀️ Test successful - checks-actions, checks-cirrus-freebsd-11, checks-cirrus-freebsd-12, checks-cirrus-freebsd-13
Approved by: JohnTitor
Pushing 3f9b323 to master...