_This commit adds to #8407bd8d52c6c to apply the same fix to
another place that does the same operation on all fds._
When _SC_OPEN_MAX (max nr of open files limit per process) is a very
big number, then closing all possible file handles can take a while.
This change first tries to use the syscall close_range() if available,
falling back to use /proc/self/fd to close only open file handles,
and lastly falling back to the old way of closing all possible handles
one after another.
In general, the first or second approach should be available
which speeds up the pty spawning.
Refs JetBrains/pty4j#147
Copied from 04685d870f
(which is EPL 1.0)
Co-authored-by: Sergey Simonchik <sergey.simonchik@jetbrains.com>
3875408070
