Re: couple of warning fixes

[Alexandre Duret-Lutz]

>>> "Akim" == Akim Demaille <address@hidden> writes:

[...]

 >> Maybe it could be cleaner to register an `unknown' language?

 Akim> I fail to see what use we could make of it?

It would be defined like the 'header' language (i.e., do
nothing), and all lookups into the %extension_map would be
replaced by a call to a wrapper function which just return
language `unknown' for unknown extensions.  I beleive this
should avoid special cases to support undefined languages.
-- 
Alexandre Duret-Lutz