Fixed crashing problem when no parameters passed from command line.
Fixed crashing problem when no parameters passed from command line.


NaturalHistoryMuseum/dmtx-wrappers,NaturalHistoryMuseum/dmtx-wrappers,dmtx/dmtx-utils,dmtx/dmtx-wrappers,dmtx/dmtx-wrappers,dmtx/dmtx-wrappers,dmtx/dmtx-utils,NaturalHistoryMuseum/dmtx-wrappers,dmtx/dmtx-wrappers,NaturalHistoryMuseum/dmtx-wrappers,dmtx/dmtx-wrappers,dmtx/dmtx-wrappers,NaturalHistoryMuseum/dmtx-wrappers,dmtx/dmtx-wrappers,NaturalHistoryMuseum/dmtx-wrappers,dmtx/dmtx-wrappers,dmtx/dmtx-utils,NaturalHistoryMuseum/dmtx-wrappers,NaturalHistoryMuseum/dmtx-wrappers