revert of #167 seem is not sufficient #196
Description
in #177, it reverted #167, however, the revert seems not sufficient. we uses buildkite agent which depends on this pty package's v1.1.21. However, we are still seeing
fork/exec... operation not permitted
when PTY is enabled.
Note that v1.1.21 does help in that the occurrence of this bug is lower than v1.1.20. However, it just still happens at a lower rate.
See buildkite/agent#2790 for more details of the bug.