Commits
Merging in latest from upstream (HDFFV/hdf5:refs/heads/develop) * commit '50ca26f3ec428de408040335f2a2999e750d98b3': Updated the passthru VOL connector: * snprintf --> sprintf (for Windows compat) * tabs --> spaces * removed spurious parens from returns * Changed the logging macro to something less clash-prone Make sure to free copy of VOL connector's name when H5VL_register_connector fails
