[PATCH] D39203: [raw_fd_ostream] report actual error in error messages

[Reid Kleckner via Phabricator via llvm-commits]

rnk added a comment.

In https://reviews.llvm.org/D39203#904284, @inglorion wrote:

> If you agree, I'd like to ship this without the test for now.


Yep, let's land this. Writing a portable test for `write`/`WriteFile` errors is hard.


https://reviews.llvm.org/D39203