Basically, limiting to string format logging limits to thinking
of logging
as purely strings. Using an API of 'list of items' decouples
it to the
more abstract 'logging stuff', with the actual string only
mattering for
final output.
This is really valid point.
There is still a problem: the analogy, that log/logf is similar
to write/writef, is not right anymore. Please correct me if I'm
wrong... but AFAIK write converts every argument to string and
the output device has no mean to choose a preferred
representation of the arguments.
It will be a surprise if I replace
log(a, b, c);
with
logf("%s%s%s", a, b, c);
and possibly get different results.
