Cleaned up an 'uninitialized variable' issue reported by static analysis. Minor fix, rolling in to this PR rather than spinning up a separate one.
Cleaned up an 'uninitialized variable' issue reported by static analysis. Minor fix, rolling in to this PR rather than spinning up a separate one.

Unidata/netcdf-c,Unidata/netcdf-c,Unidata/netcdf-c,Unidata/netcdf-c