Fix uninitialized arguments to HDF5 functions
Fix uninitialized arguments to HDF5 functions

* src/mat73.c (Mat_VarWriteChar73): Return an error if the data type is not
      recognized, otherwise dset_id is not set

* src/mat73.c (Mat_VarReadData73): Move H5Sclose call into switch case to
      make sure dset_space is initialized

telehan/libmatio,tbeu/matio,martinichka/matio-coder,telehan/libmatio,CBL-ORION/matio-sf-mirror,MaartenBent/matio,tbeu/matio,CBL-ORION/matio,martinichka/matio-coder,NJannasch/matio,tbeu/matio,NJannasch/matio,martinichka/matio-coder,tbeu/matio,MaartenBent/matio,MaartenBent/matio,CBL-ORION/matio,MaartenBent/matio,CBL-ORION/matio-sf-mirror