[scripts] Fixing some bugs in benchmark scripts.
[scripts] Fixing some bugs in benchmark scripts.

openconnectome/open-connectome,openconnectome/open-connectome,neurodata/ndstore,openconnectome/open-connectome,openconnectome/open-connectome,neurodata/ndstore,neurodata/ndstore,openconnectome/open-connectome,neurodata/ndstore,openconnectome/open-connectome