Use standard In_channel.with_open_* and Out_channel.with_open_* where possible
#13151
| Job | Run time |
|---|---|
| 45s | |
| 45s |
In_channel.with_open_* and Out_channel.with_open_* where possible
#13151
| Job | Run time |
|---|---|
| 45s | |
| 45s |