bug#38365: 26.3; The info doc of eieio-class-name is outdated and its value looks incorrect

[Stefan Monnier]

> I've now updated the manual to say what it really returns now, but it's
> not a very useful function.  :-)  (I mean, it just returns its argument.)

It returns its argument only if its argument was a class name.
It's more useful when its argument is a class object (or when you don't
know which of the two it will be).


        Stefan