Seems sensible for itemgetter and attrgetter, where all but the first argument is nonsensical anyway.

It really seems like methodcaller should allow additional arguments (positional and keyword though), a la functools.partial (the difference being the support for duck-typed methods, where functools.partial only supports unbound methods for a specific type). I suppose #25454 disagrees, but it seems very strange how `methodcaller` is like `functools.partial`, but without call time argument binding, only definition time.