procutil: back out 8403cc54bc83 (make ....procutil.stderr unbuffered)
Changeset 8403cc54bc83 introduced code that opens a second file object
referring to the stderr file descriptor. This broke tests on Windows. The
reason is that on Windows, sys.stderr is buffered and procutil.stderr closed
the file descriptor when it got garbage collected before sys.stderr had the
chance to flush buffered data.
`procutil.stdout` had the same problem for a long time, but we didn’t realize,
as in CI test runs, stdout is not a TTY and in this case no second file object
is opened.
#require rust
$ rhg() {
> if [ -f "$RUNTESTDIR/../rust/target/debug/rhg" ]; then
> "$RUNTESTDIR/../rust/target/debug/rhg" "$@"
> else
> echo "skipped: Cannot find rhg. Try to run cargo build in rust/rhg."
> exit 80
> fi
> }
$ rhg unimplemented-command
[252]
$ rhg root
abort: no repository found in '$TESTTMP' (.hg not found)!
[255]
$ hg init repository
$ cd repository
$ rhg root
$TESTTMP/repository
$ rhg root > /dev/full
abort: No space left on device (os error 28)
[255]
$ rm -rf `pwd`
$ rhg root
abort: error getting current working directory: $ENOENT$
[255]