volume_stats segfault

[bcdarwin]

$ volume_stats -max /path/to/file.mnc
Scanning /hpf/largeprojects/MICe/tools/atlases/Dorr_2008/ex-vivo/Dorr_2008_mask.mnc..........................................................................................................................................................................................................................................................................................Done
Creating histogram with 65536 bins, bin width 1.5259e-05...Segmentation fault  (core dumped)

Seems to be a null pointer here but control shouldn't even reach there so perhaps this is an argument parsing issue, perhaps related to #3? This happens with 1.9.17-develop and 1.9.16 releases but confusingly not with a 1.9.16 debug build, so perhaps memory corruption of some sort?

Anyway, I don't actually use this program but it causes several minc-toolkit tests to fail.

[gdevenyi]

I can no longer trigger this on 1.9.18-devel