scanf in MiNT libraries

[Michal Jaegermann <NTOMCZAK@vm.ucs.UAlberta.CA>]

Stephen Usher suggests replacement of the current scanf() with the one
taken from GNU.  Be careful with that!  Currently MiNT/TOS libraries,
which come with gcc but can be used with other compilers, are practically
GNU-free.  Polluting them that way may be not such a hot idea.
Implications are far ranging.  Better look at BSD code.

I do not have ideological quarrels with FSF and GNU licence.  Actually
I even contributed bits and pieces of my own work to some FSF projects.
Still I would tread with caution.

   Michal