Unify use of an atol when comparing to zero
#3198
| Job | Run time |
|---|---|
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| 32m 43s | |
| 10m 49s | |
| 40m 7s | |
| 33m 13s | |
| 12m 41s | |
| 34m 56s | |
| 25m 1s | |
| 11m 22s | |
| 39m 4s | |
| 26m 5s | |
| 12m 11s | |
| 31m 49s | |
| 25m 16s | |
| 10m 13s | |
| 34m 59s | |
| 24m 4s | |
| 16m 39s | |
| 7h 39m 39s |