env: fix regression of --ignore-signal=PIPE
#3188
| Job | Run time |
|---|---|
| 7m 17s | |
| 1h 0m 3s | |
| 1h 7m 20s |
--ignore-signal=PIPE
#3188
| Job | Run time |
|---|---|
| 7m 17s | |
| 1h 0m 3s | |
| 1h 7m 20s |