https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62068
--- Comment #3 from Tom Tromey <tromey at gcc dot gnu.org> --- It was documented that way on some systems. Eg: http://www.cs.rit.edu/~hpb/Man/_Man_SunOS_4.1.3_html/html3/varargs.3.html Perhaps that isn't operative language any more; I guess I'm mildly curious to know.
