cli: implement enough of jj fix to run a single tool on all files
#1700
| Job | Run time |
|---|---|
| 4m 52s | |
| 5m 10s | |
| 10m 2s |
jj fix to run a single tool on all files
#1700
| Job | Run time |
|---|---|
| 4m 52s | |
| 5m 10s | |
| 10m 2s |