Use __STACKTRACE__ instead of System.stacktrace/1 in SpanTest
Use __STACKTRACE__ instead of System.stacktrace/1 in SpanTest

appsignal/appsignal-elixir,appsignal/appsignal-elixir,appsignal/appsignal-elixir,appsignal/appsignal-elixir