zopen changes: forbid implicit binary/text mode, signature change, default UTF-8 encoding in text mode, drop .z support after one-year
#2328
| Job | Run time |
|---|---|
| 1m 55s | |
| 2m 10s | |
| 1m 3s | |
| 49s | |
| 2m 31s | |
| 2m 28s | |
| 10m 56s |