When saving message sub-boards and file directories to msgs.cnf/file.cnf,

if any sub-boards or directories have *blank* names or internal code suffixes
(a sign of a corrupted configuration), exclude them from the saved subs/dirs
automatically. I'm not sure how this can happen (use of cnflib.js?) - but
running "scfg -f" (force save) should fix this situation. For Android8675.