too many arguments in rust protover_compute_vote()
[569b4e57e23d728969a12751afc6b45f32d0f093](https://gitweb.torproject.org/tor.git/commit/?id=569b4e57e23d728969a12751afc6b45f32d0f093) added an argument `allow_long_proto_names: bool` in order to `maintain compatibility with consensus methods older than 29.` The C code never added this 3rd argument and only calls it with 2, which can't be safe. **Trac**: **Username**: cyberpunks
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