#980 Segfault while converting mopout to pdb

[Roman Kudrin]

I executed this sequence:

babel -ipdb az.pdb -omop az_opt.mop -xk "PM6"
mopac az_opt.mop  #this is an alias for MOPAC2016.exe
babel -imopout az_opt.out -ipdb az_opt.pdb

The last command terminates with segmentation fault.

I used babel 2.3.2, MOPAC2016 under Debian Stretch. az.pdb is attached to this message.