Fix unhandled exception output having extra blank lines

[hhyyrylainen]

For some reason the launcher output (and perhaps only on Windows), has extra lines between exception lines:

Background task caused an exception: System.AggregateException: One or more errors occurred. (Object reference not set to an instance of an object) ---> System.NullReferenceException: Object reference not set to an instance of an object



  at AutoEvo.ChunkFoodSource.FitnessScore (Species species, AutoEvo.SimulationCache simulationCache, WorldGenerationSettings worldSettings) [0x0002e] in <197e20afc99848a09209810cf2fe82cc>:0 



  at AutoEvo.PopulationSimulation.SimulatePatchStep (AutoEvo.SimulationConfiguration simulationConfiguration, Patch patch, System.Collections.Generic.IEnumerable`1[T] genericSpecies, System.Random random, AutoEvo.SimulationCache cache, IAutoEvoConfiguration autoEvoConfiguration, WorldGenerationSettings worldSettings) [0x001f6] in <197e20afc99848a09209810cf2fe82cc>:0 



  at AutoEvo.PopulationSimulation.RunSimulationStep (AutoEvo.SimulationConfiguration parameters, System.Collections.Generic.List`1[T] species, System.Collections.Generic.IEnumerable`1[T] patchesToSimulate, System.Random random, AutoEvo.SimulationCache cache, IAutoEvoConfiguration autoEvoConfiguration, WorldGenerationSettings worldSettings) [0x00057] in <197e20afc99848a09209810cf2fe82cc>:0 



  at AutoEvo.PopulationSimulation.Simulate (AutoEvo.SimulationConfiguration parameters, AutoEvo.SimulationCache existingCache) [0x000bc] in <197e20afc99848a09209810cf2fe82cc>:0 



  at AutoEvo.FindBestMutation.TryVariant () [0x00082] in <197e20afc99848a09209810cf2fe82cc>:0 



  at AutoEvo.VariantTryingStep.RunStep (AutoEvo.RunResults results) [0x0002d] in <197e20afc99848a09209810cf2fe82cc>:0 



  at AutoEvoRun.RunSingleStepToCompletion (AutoEvo.IRunStep step) [0x00008] in <197e20afc99848a09209810cf2fe82cc>:0 



  at AutoEvoRun+<>c__DisplayClass58_0.<Step>b__1 () [0x00000] in <197e20afc99848a09209810cf2fe82cc>:0 



  at System.Threading.Tasks.Task.InnerInvoke () [0x0000f] in <c84d94161bca414384015e66544862cf>:0 



  at System.Threading.Tasks.Task.Execute () [0x00000] in <c84d94161bca414384015e66544862cf>:0 



   --- End of inner exception stack trace ---



---> (Inner Exception #0) System.NullReferenceException: Object reference not set to an instance of an object



  at AutoEvo.ChunkFoodSource.FitnessScore (Species species, AutoEvo.SimulationCache simulationCache, WorldGenerationSettings worldSettings) [0x0002e] in <197e20afc99848a09209810cf2fe82cc>:0 



  at AutoEvo.PopulationSimulation.SimulatePatchStep (AutoEvo.SimulationConfiguration simulationConfiguration, Patch patch, System.Collections.Generic.IEnumerable`1[T] genericSpecies, System.Random random, AutoEvo.SimulationCache cache, IAutoEvoConfiguration autoEvoConfiguration, WorldGenerationSettings worldSettings) [0x001f6] in <197e20afc99848a09209810cf2fe82cc>:0 



  at AutoEvo.PopulationSimulation.RunSimulationStep (AutoEvo.SimulationConfiguration parameters, System.Collections.Generic.List`1[T] species, System.Collections.Generic.IEnumerable`1[T] patchesToSimulate, System.Random random, AutoEvo.SimulationCache cache, IAutoEvoConfiguration autoEvoConfiguration, WorldGenerationSettings worldSettings) [0x00057] in <197e20afc99848a09209810cf2fe82cc>:0 



  at AutoEvo.PopulationSimulation.Simulate (AutoEvo.SimulationConfiguration parameters, AutoEvo.SimulationCache existingCache) [0x000bc] in <197e20afc99848a09209810cf2fe82cc>:0 



  at AutoEvo.FindBestMutation.TryVariant () [0x00082] in <197e20afc99848a09209810cf2fe82cc>:0 



  at AutoEvo.VariantTryingStep.RunStep (AutoEvo.RunResults results) [0x0002d] in <197e20afc99848a09209810cf2fe82cc>:0 



  at AutoEvoRun.RunSingleStepToCompletion (AutoEvo.IRunStep step) [0x00008] in <197e20afc99848a09209810cf2fe82cc>:0 



  at AutoEvoRun+<>c__DisplayClass58_0.<Step>b__1 () [0x00000] in <197e20afc99848a09209810cf2fe82cc>:0 



  at System.Threading.Tasks.Task.InnerInvoke () [0x0000f] in <c84d94161bca414384015e66544862cf>:0 



  at System.Threading.Tasks.Task.Execute () [0x00000] in <c84d94161bca414384015e66544862cf>:0 <---





Background task caused an exception: System.AggregateException: One or more errors occurred. (Object reference not set to an instance of an object) ---> System.NullReferenceException: Object reference not set to an instance of an object



  at System.Linq.Enumerable.Where[TSource] (System.Collections.Generic.IEnumerable`1[T] source, System.Func`2[T,TResult] predicate) [0x0001c] in <8dc7f7cf628440cbb575eaa126cc9c6d>:0 



  at AutoEvo.PopulationSimulation.RunSimulationStep (AutoEvo.SimulationConfiguration parameters, System.Collections.Generic.List`1[T] species, System.Collections.Generic.IEnumerable`1[T] patchesToSimulate, System.Random random, AutoEvo.SimulationCache cache, IAutoEvoConfiguration autoEvoConfiguration, WorldGenerationSettings worldSettings) [0x00045] in <197e20afc99848a09