xdiff: guard against negative context lengths #27673
| Job | Run time |
|---|---|
| 9s | |
| 1m 3s | |
| 4m 51s | |
| 1m 28s | |
| 3m 53s | |
| 7m 17s | |
| 4m 0s | |
| 6m 0s | |
| 22m 46s | |
| 21m 7s | |
| 10m 15s | |
| 9m 58s | |
| 16m 44s | |
| 13m 35s | |
| 17m 47s | |
| 9m 34s | |
| 1m 20s | |
| 10m 36s | |
| 0s | |
| 13m 47s | |
| 28m 37s | |
| 7m 44s | |
| 31m 1s | |
| 1m 19s | |
| 1m 17s | |
| 9m 57s | |
| 0s | |
| 9m 34s | |
| 10m 45s | |
| 8m 43s | |
| 6m 39s | |
| 8m 0s | |
| 5m 43s | |
| 7m 32s | |
| 7m 20s | |
| 7m 49s | |
| 7m 31s | |
| 9m 34s | |
| 11m 2s | |
| 7m 32s | |
| 8m 49s | |
| 9m 24s | |
| 12m 20s | |
| 7m 58s | |
| 6m 27s | |
| 6m 23s | |
| 7m 12s | |
| 7h 2m 22s |