[Bug-gsl] manual error?

[Itaru ISHIKAWA]

I uses GSL recently, and be helped by this library.
Thank you very much.

There are some points which I think it is unnatural or mistaken
in GSL manual, so I report these.

In "35.9 Examples" section of "Multidimensional Minimization" chapter,
I think it is natural if
  my_func.params = ∥
    ->  my_func.params = par;
and
  minex_func.params = (void *)&par
    -> minex_func.params = (void *)par

According to GSL_MULTIMIN_FN_EVAL definition in "gsl_multimin.h" and
my_f() definition in "35.4 Providing a function to minimize",
I think the corrected expression are more natural.

I am sorry if I call correct examples as mistakes.