Use destats for timesteps

Author: SebastianM-C

src/nbody_simulation_result.jl

@@ -11,7 +11,7 @@ function Base.show(stream::IO, sr::SimulationResult)
     println(stream)
     show(stream, sr.simulation)
     print(stream, "Time steps: ")
-    show(stream, length(sr.solution.t))
+    show(stream, sr.solution.destats.naccept)
     println(stream)
     print(stream, "t: ", minimum(sr.solution.t), ", ", maximum(sr.solution.t))
     println(stream)