Cannot write multi-dimensional string arrays

[rly]

This only works for 1-D string arrays. I think the if statement in this code is intended to check for structured arrays / compound dtypes. Else, execution should go to get_data_shape which gets the shape correctly.

hdmf/src/hdmf/backends/hdf5/h5tools.py

Lines 1472 to 1473 in 7426275

	elif isinstance(dtype, np.dtype):
	data_shape = (len(data),)

[stephprince]

See related issue here with tests: #1096