[Wien] kgen issue in 13.1

[Stefaan Cottenier]

I notice that the new wien2k 13.1 spends a lot of time (=up to 1 minute) 
in kgen. This appears to be due to a large fort.10 file that is written 
by create_filehf.f in SRC_kgen (it is 40 Mb for a simple test case). 
This fort.10 file is not present when wien2k 12.1 is used.

Is this the desired behaviour, or was perhaps a write statement not 
commented away?

Thanks,
Stefaan