401,402c401,402
< # Exit code is 0 if no stats error, 1 otherwise
< $status = ($max_err_mag == 0.0) ? 0 : 1;
---
> # Exit code is 0 if some stats found & no stats error, 1 otherwise
> $status = ($#key_stats >= 0 && $max_err_mag == 0.0) ? 0 : 1;