Fix openbsd-compat/arc4random.c

[dmitigr]

Add trailing curly brace to _rs_init() definition.

[tgauth]

good find - thanks @dmitigr!

[d5UtQvp8QQU9]

Something smells fishy here. I'm a total noob to this project, but what I know are 3 things:

1. In the original implementation, _rs_init() spans to the call of chacha_ivsetup() and does something meaningful with buf. Here, _rs_init() does absolutely nothing.

2. The declared functions static void getrnd(u_char *s, size_t len) are never called.

3. Because _rs_allocate() is only present in the #else path of #ifdef WINDOWS inside of getrnd(), it is never called for !WINDOWS (see 2.), but a call to it is not even compiled in for WINDOWS. So rs can't be something else than NULL.

I'm not saying this is wrong, but it looks suspicious.

This project is broken without WITH_OPENSSL. So why not get rid of this pretend-to-be-code and debloat the project ?