wrong argument order in save_const_to_h5

@danilevc This is a fix for a last minute change in the last PR which was already reviewed and merged

For the record, I guess that previous PR you mentioned is !348 (merged).

Indeed, Thank you

Looking at the diff from !348 (merged), this change LGTM.

I think it's generally be a good idea to use keyword arguments when calling functions with this many parameters, so that the order doesn't matter.

Yes, I agree.

Thank you for the review

merged

mentioned in commit 3fa2cd9e