message: remove explicit return
diff: @@ -173,7 +173,7 @@ pub fn is_isomorphic<N, E, Ty, Ix>(g0: &Graph<N, E, Ty, Ix>,
  }
  let mut st = [Vf2State::new(g0), Vf2State::new(g1)];
  - return try_match(&mut st, g0, g1, &mut NoSemanticMatch, &mut NoSemanticMatch).unwrap_or(false);
  + try_match(&mut st, g0, g1, &mut NoSemanticMatch, &mut NoSemanticMatch).unwrap_or(false)
  }
  /// [Graph] Return `true` if the graphs `g0` and `g1` are isomorphic.
  