Add O_TMPFILE constant

[TethysSvensson]

No description provided.

[rust-highfive]

Thanks for the pull request, and welcome! The Rust team is excited to review your changes, and you should hear from @alexcrichton (or someone else) soon.

If any changes to this PR are deemed necessary, please add them as extra commits. This ensures that the reviewer can see what has changed since they last reviewed the code. Due to the way GitHub handles out-of-date commits, this should also make it reasonably obvious what issues have or haven't been addressed. Large or tricky changes may require several passes of review and changes.

Please see the contribution instructions for more information.

[alexcrichton]

@bors: r+

Thanks!

[TethysSvensson]

It does not seem like bors noticed? Or should I just be more patient?

[alexcrichton]

@bors: r+

[alexcrichton]

@bors: r+

[bors]

📌 Commit 6207166 has been approved by alexcrichton

[bors]

⌛ Testing commit 6207166 with merge 43f1d3f...

[alexcrichton]

Thanks for the poke! Should be fixed now

[bors]

☀️ Test successful - status-appveyor, status-travis
Approved by: alexcrichton
Pushing 43f1d3f to master...