Likely code error in cc_extensions.py

[mhucka]

On line 72, the variable eri_kpt is assigned to itself. It's not clear what it should be instead – either something is missing on the RHS or else it's just a pointless assignment.

        if dtype == float:
            eri_kpt = eri_kpt.real
        eri_kpt = eri_kpt

[mhucka]

Fixed by PR #1058.