fixes issue 440 in bulk_extractor

[codecov[bot]]

Codecov Report

Attention: 1 lines in your changes are missing coverage. Please review.

Comparison is base (278ec93) 61.49% compared to head (aa87dea) 61.69%.

Files	Patch %	Lines
scanner_set.cpp	85.71%	1 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #97 +/- ## ========================================== + Coverage 61.49% 61.69% +0.20% ========================================== Files 45 45 Lines 2664 2665 +1 ========================================== + Hits 1638 1644 +6 + Misses 1026 1021 -5 ```

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