Update help message of jj edit, add FAQ on idiomatic change switching
#9657
| Job | Run time |
|---|---|
| 3m 14s | |
| 22s | |
| 2m 38s | |
| 32s | |
| 23s | |
| 6m 31s | |
| 4m 17s | |
| 2m 28s | |
| 22s | |
| 33s | |
| 12s | |
| 21m 32s |