Fix ambiguous _safer_popen_windows comment
#822
| Job | Run time |
|---|---|
| 1m 2s | |
| 46s | |
| 1m 48s |
_safer_popen_windows comment
#822
| Job | Run time |
|---|---|
| 1m 2s | |
| 46s | |
| 1m 48s |