test fix for issue 75 (seconds hit 60 at end of month, day goes out of range) went wrong because the given Julian date was 8640 microseconds from the real value. New test is less than 1 microsecond off the real value.
test fix for issue 75 (seconds hit 60 at end of month, day goes out of range) went wrong because the given Julian date was 8640 microseconds from the real value. New test is less than 1 microsecond off the real value.

Unidata/netcdf4-python,Unidata/netcdf4-python,Unidata/netcdf4-python