[PATCH] remove stray `;` after function definitions

[Michael Forney]

On 2019-11-27, Damien Miller <djm at mindrot.org> wrote:
> applied, thanks. Surprised the fairly aggressive set of -W flags we use
> by default didn't catch this...

This can be caught with -Wpedantic, which seems to catch a few more
instances of this, as well as passing non-void pointers to printf for
the `%p` format specifier. Patches attached for these.

However, it also catches conversion from dlsym result (void *) to
function pointer, which is not allowed in ISO C, but POSIX requires it
to work:

"Note that conversion from a void * pointer to a function pointer is
not defined by the ISO C standard. This standard requires this
conversion to work correctly on conforming implementations."

The only way I've found to get around this warning is to cast the
address of the function pointer lvalue to void **, then dereference,
as in

	*(void **)&fn = dlsym(handle, "foo");

There are three instances of this in ssh-sk.c and one in ssh-pkcs11.c.
I'm not aware of a way to turn on the rest of -Wpedantic except for
object-function pointer conversions, but I do think it is a good idea
to turn it on, so perhaps it is worth addressing...
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