[erlang-bugs] Missing return values for mnesia:subscribe/1 in documentation

[PAILLEAU Eric]

Hi,
I found that in online documentation is missing possible returned values 
of mnesia:subscribe/1 .

By trying, looks like {ok, nodes()} when OK, but what on error ?

I cannot see more info in User's Guide either ...

---8<------------------------------------------------------------------------------
subscribe(EventCategory)

Ensures that a copy of all events of type EventCategory are sent to the 
caller. The event types available are described in the Mnesia User's Guide.
---8<------------------------------------------------------------------------------

Regards.