Bug#1070894: slepc: FTBFS: Fatal Error: Cannot open module file ‘slepcmfn.mod’ for reading at (1): No such file or directory

[Drew Parsons]

Source: slepc
Followup-For: Bug #1070894
Control: tags -1 ftbfs fixed-upstream
Control: forwarded -1 https://gitlab.com/slepc/slepc/-/issues/83

Fixed upstream in 3.20.2,
https://gitlab.com/slepc/slepc/-/merge_requests/639