Fix examples/hdf5.py to work properly with --test
Fix examples/hdf5.py to work properly with --test

jlombacher/pyqtgraph,ericdill/pyqtgraph,campagnola/acq4,welshjf/pyqtgraph,campagnola/acq4,pbmanis/acq4,hiuwo/acq4,ddamiani/pyqtgraph,gvalentine/pyqtgraph,jlombacher/pyqtgraph,acq4/acq4,ng110/pyqtgraph,ericdill/pyqtgraph,wonkoderverstaendige/MausverPyler,campagnola/acq4,mpvismer/pyqtgraph,mgraupe/acq4,tropp/acq4,tropp/acq4,ng110/pyqtgraph,ddamiani/pyqtgraph,Lx37/pyqtgraph,benvermaercke/pyqtgraph,petebachant/pyqtgraph,acq4/acq4,onlyjus/pyqtgraph,mgraupe/acq4,meganbkratz/acq4,carlomt/dicom_tools,acq4/acq4,vallsv/pyqtgraph,gvalentine/pyqtgraph,hiuwo/acq4,carlomt/dicom_tools,onlyjus/pyqtgraph,mgraupe/acq4,petebachant/pyqtgraph,campagnola/acq4,mpvismer/pyqtgraph,onlyjus/pyqtgraph,mgraupe/acq4,meganbkratz/acq4,welshjf/pyqtgraph,pbmanis/acq4,benvermaercke/pyqtgraph,derricw/pyqtgraph,ericdill/pyqtgraph,mgraupe/acq4,pmaunz/pyqtgraph,hiuwo/acq4,hiuwo/acq4,meganbkratz/acq4,JenSte/pyqtgraph,Lx37/pyqtgraph,derricw/pyqtgraph,acq4/acq4,pmaunz/pyqtgraph,pbmanis/acq4,meganbkratz/acq4,nmearl/pyqtgraph,gvalentine/pyqtgraph,wonkoderverstaendige/MausverPyler,JenSte/pyqtgraph,stscieisenhamer/pyqtgraph,hiuwo/acq4,duguxy/pyqtgraph,stscieisenhamer/pyqtgraph,vallsv/pyqtgraph,tropp/acq4,ddamiani/pyqtgraph,duguxy/pyqtgraph,pbmanis/acq4,benvermaercke/pyqtgraph,nmearl/pyqtgraph,welshjf/pyqtgraph,tropp/acq4