Skipping hdf5 test

Author: mikaem

tests/test_io.py

@@ -168,7 +168,7 @@ def test_4D(backend, forward_output):
         import netCDF4
     except ImportError:
         skip['netcdf4'] = True
-    skip['netcdf4'] = True
+    skip['hdf5'] = True
     for bnd in ('hdf5', 'netcdf4'):
         if not skip[bnd]:
             forw_output = [False]