Truncate sscanf/fscanf format string at NUL byte before counting placeholders
#29666
| Job | Run time |
|---|---|
| 32s | |
| 27s | |
| 1m 47s | |
| 1m 20s | |
| 47s | |
| 52s | |
| 45s | |
| 1m 33s | |
| 2m 0s | |
| 56s | |
| 10m 59s |