math/mpfi: make fetchable again with a silent update
MASTER_SITES moved to ENS Lyon.
Meanwhile the tarball has been rerolled:
- many auto* stuff: configure is now pre-generated;
- mpfi.pc is available
- change tests
but also some code has been modified.
Full diff available at https://people.freebsd.org/~thierry/mpfi-1.5.4.diff
PR: 293803
Reported by: Daniel Engberg