repair fx-/wraparound with 0 first argument, allow one argument
#405
| Job | Run time |
|---|---|
| 30m 5s | |
| 16m 24s | |
| 18m 5s | |
| 8m 13s | |
| 12m 35s | |
| 12m 50s | |
| 15m 51s | |
| 9m 13s | |
| 11m 56s | |
| 8m 19s | |
| 12m 56s | |
| 14m 53s | |
| 11m 30s | |
| 14m 34s | |
| 13m 10s | |
| 57m 31s | |
| 4h 28m 5s |