Make example server answer unsupported requests with 3001
Make example server answer unsupported requests with 3001

As it should. The previous discard (surely) pre-dated being able to
return {answer_message, 3001} from a handle_request callback.

RoadRunnr/otp,dgud/otp,massemanet/otp,Teino1978-Corp/otp,lhslll/otp,lemenkov/otp,Teino1978-Corp/otp,RJ/otp,erlang/otp,emacsmirror/erlang,ferd/otp,jinshana/otp,enikki/otp,stolen/otp,lantti/otp,massemanet/otp,haguenau/otp,johanclaesson/otp,mikpe/otp,erlang/otp,gjaldon/otp,stolen/otp,lemenkov/otp,krishnakumar4a4/otp,NOMORECOFFEE/otp,RJ/otp,vic/otp,hairyhum/otp,tuncer/otp,sitexa/otp,stolen/otp,hairyhum/otp,falkevik/otp,benoitc/otp-1,bernardd/otp,release-project/otp,yangchengjian/otp,release-project/otp,haguenau/otp,g-andrade/otp,goertzenator/otp,lightcyphers/otp,erlang/otp,isvilen/otp,tuncer/otp,massemanet/otp,ader1990/otp,potatosalad/otp,platinumthinker/otp,riverrun/otp,sdebnath/otp,potatosalad/otp,weisslj/otp,RGafiyatullin/otp,dumbbell/otp,erlang/otp,vladdu/otp,bernardd/otp,ader1990/otp,massemanet/otp,g-andrade/otp,lrascao/otp,ahmedshafeeq/otp,uabboli/otp,bugs-erlang-org/otp,Teino1978-Corp/erlang-otp,schlagert/otp,enikki/otp,saleyn/otp,VincentHHL/otp,legoscia/otp,emile/otp,aboroska/otp,RGafiyatullin/otp,lemenkov/otp,sammoth-wazoku/otp,ahmedshafeeq/otp,bsmr-erlang/otp,dgud/otp,theom/otp,rlipscombe/otp,awetzel/otp,RGafiyatullin/otp,schlagert/otp,emile/otp,theom/otp,matwey/otp,erlang/otp,potatosalad/otp,sitexa/otp,lucafavatella/otp,jemsbhai/otp,lemenkov/otp,mujiatong/otp,RJ/otp,dgud/otp,isvilen/otp,getong/otp,potatosalad/otp,g-andrade/otp,RoadRunnr/otp,electricimp/otp,NOMORECOFFEE/otp,fenollp/otp,g-andrade/otp,entropiae/otp,RichMorin/otp,cobusc/otp,vinoski/otp,isvilen/otp,jj1bdx/otp,lantti/otp,aboroska/otp,lightcyphers/otp,jj1bdx/otp,bugs-erlang-org/otp,johanclaesson/otp,vinoski/otp,lianghaivv/otp,jinshana/otp,RichMorin/otp,emacsmirror/erlang,ahmedshafeeq/otp,ahmedshafeeq/otp,cobusc/otp,krishnakumar4a4/otp,rlipscombe/otp,riverrun/otp,yangchengjian/otp,weisslj/otp,neeraj9/otp,mikpe/otp,marquisthunder/otp,jj1bdx/otp,marquisthunder/otp,dgud/otp,release-project/otp,weisslj/otp,jamesruan/otp,NOMORECOFFEE/otp,lrascao/otp,kvakvs/otp,vladdu/otp,jemsbhai/otp,paladim/otp,lianghaivv/otp,uabboli/otp,platinumthinker/otp,lianghaivv/otp,RichMorin/otp,basho/otp,paladim/otp,ader1990/otp,lantti/otp,mujiatong/otp,g-andrade/otp,kvakvs/otp,mikpe/otp,paulcager/otp,jemsbhai/otp,sitexa/otp,haguenau/otp,RGafiyatullin/otp,kvakvs/otp,lemenkov/otp,kvakvs/otp,NOMORECOFFEE/otp,jemsbhai/otp,getong/otp,RJ/otp,klarna/otp,jj1bdx/otp,sdebnath/otp,benoitc/otp-1,vladdu/otp,fenollp/otp,derek121/otp,mujiatong/otp,c-rack/otp,bugs-erlang-org/otp,bsmr-erlang/otp,fenollp/otp,klarna/otp,stolen/otp,beni55/otp,fenollp/otp,c-rack/otp,bugs-erlang-org/otp,sitexa/otp,erlang/otp,jinshana/otp,jamesruan/otp,RJ/otp,jj1bdx/otp,enikki/otp,Teino1978-Corp/otp,sammoth-wazoku/otp,dumbbell/otp,legoscia/otp,aboroska/otp,fenollp/otp,matwey/otp,NOMORECOFFEE/otp,paladim/otp,g-andrade/otp,lantti/otp,RGafiyatullin/otp,bernardd/otp,electricimp/otp,lantti/otp,fenollp/otp,bernardd/otp,riverrun/otp,RGafiyatullin/otp,lightcyphers/otp,falkevik/otp,platinumthinker/otp,weisslj/otp,jamesruan/otp,marquisthunder/otp,isvilen/otp,GinjaNinja32/otp,weisslj/otp,jamesruan/otp,lemenkov/otp,awetzel/otp,krishnakumar4a4/otp,jinshana/otp,schlagert/otp,yangchengjian/otp,entropiae/otp,g-andrade/otp,legoscia/otp,basho/otp,marquisthunder/otp,Teino1978-Corp/otp,ahmedshafeeq/otp,stolen/otp,derek121/otp,sammoth-wazoku/otp,enikki/otp,jinshana/otp,c-rack/otp,ahmedshafeeq/otp,derek121/otp,lhslll/otp,GinjaNinja32/otp,schlagert/otp,Teino1978-Corp/erlang-otp,benoitc/otp-1,aboroska/otp,yangchengjian/otp,getong/otp,paladim/otp,release-project/otp,bsmr-erlang/otp,mikpe/otp,haguenau/otp,emile/otp,vladdu/otp,ferd/otp,palas/otp,schlagert/otp,jamesruan/otp,lrascao/otp,enikki/otp,klarna/otp,benoitc/otp-1,bjorng/otp,yangchengjian/otp,cobusc/otp,Teino1978-Corp/erlang-otp,g-andrade/otp,ader1990/otp,palas/otp,klarna/otp,vinoski/otp,mujiatong/otp,bjorng/otp,dgud/otp,gjaldon/otp,basho/otp,emacsmirror/erlang,legoscia/otp,cobusc/otp,psyeugenic/otp,yangchengjian/otp,dgud/otp,uabboli/otp,jj1bdx/otp,gjaldon/otp,RoadRunnr/otp,falkevik/otp,psyeugenic/otp,lhslll/otp,beni55/otp,matwey/otp,cobusc/otp,rlipscombe/otp,vladdu/otp,bernardd/otp,aboroska/otp,lucafavatella/otp,awetzel/otp,cnbin/otp,getong/otp,jinshana/otp,erlang/otp,vladdu/otp,goertzenator/otp,vladdu/otp,electricimp/otp,goertzenator/otp,tuncer/otp,RaimoNiskanen/otp,paulcager/otp,bjorng/otp,RJ/otp,bjorng/otp,saleyn/otp,msantos/otp,ahmedshafeeq/otp,sitexa/otp,psyeugenic/otp,lhslll/otp,yangchengjian/otp,VincentHHL/otp,tuncer/otp,tuncer/otp,paulcager/otp,Teino1978-Corp/otp,bsmr-erlang/otp,goertzenator/otp,VincentHHL/otp,paulcager/otp,cobusc/otp,lucafavatella/otp,legoscia/otp,gjaldon/otp,vinoski/otp,electricimp/otp,dumbbell/otp,rlipscombe/otp,bernardd/otp,derek121/otp,potatosalad/otp,erlang/otp,kvakvs/otp,dgud/otp,c-rack/otp,potatosalad/otp,lightcyphers/otp,isvilen/otp,VincentHHL/otp,johanclaesson/otp,bugs-erlang-org/otp,RJ/otp,krishnakumar4a4/otp,lhslll/otp,lrascao/otp,marquisthunder/otp,rlipscombe/otp,benoitc/otp-1,neeraj9/otp,jamesruan/otp,RoadRunnr/otp,bjorng/otp,jj1bdx/otp,mujiatong/otp,psyeugenic/otp,mikpe/otp,potatosalad/otp,jemsbhai/otp,RaimoNiskanen/otp,gjaldon/otp,RoadRunnr/otp,GinjaNinja32/otp,kvakvs/otp,electricimp/otp,potatosalad/otp,stolen/otp,getong/otp,klarna/otp,cnbin/otp,jemsbhai/otp,jinshana/otp,lhslll/otp,basho/otp,release-project/otp,paulcager/otp,bsmr-erlang/otp,msantos/otp,isvilen/otp,riverrun/otp,matwey/otp,massemanet/otp,neeraj9/otp,krishnakumar4a4/otp,basho/otp,beni55/otp,saleyn/otp,yangchengjian/otp,paulcager/otp,entropiae/otp,dgud/otp,hairyhum/otp,legoscia/otp,isvilen/otp,lianghaivv/otp,awetzel/otp,lrascao/otp,platinumthinker/otp,lemenkov/otp,emile/otp,hairyhum/otp,enikki/otp,johanclaesson/otp,RoadRunnr/otp,GinjaNinja32/otp,entropiae/otp,ader1990/otp,RichMorin/otp,paulcager/otp,derek121/otp,sitexa/otp,fenollp/otp,dumbbell/otp,massemanet/otp,benoitc/otp-1,uabboli/otp,marquisthunder/otp,g-andrade/otp,lhslll/otp,erlang/otp,matwey/otp,entropiae/otp,getong/otp,theom/otp,fenollp/otp,GinjaNinja32/otp,haguenau/otp,rlipscombe/otp,cnbin/otp,falkevik/otp,getong/otp,lightcyphers/otp,sdebnath/otp,derek121/otp,dumbbell/otp,RoadRunnr/otp,isvilen/otp,vic/otp,gjaldon/otp,mikpe/otp,ferd/otp,aboroska/otp,theom/otp,vic/otp,vinoski/otp,johanclaesson/otp,tuncer/otp,cobusc/otp,emacsmirror/erlang,RoadRunnr/otp,theom/otp,RaimoNiskanen/otp,saleyn/otp,potatosalad/otp,derek121/otp,platinumthinker/otp,RJ/otp,sitexa/otp,neeraj9/otp,saleyn/otp,tuncer/otp,klarna/otp,theom/otp,RichMorin/otp,goertzenator/otp,jemsbhai/otp,ader1990/otp,ahmedshafeeq/otp,aboroska/otp,paladim/otp,bjorng/otp,uabboli/otp,paulcager/otp,haguenau/otp,vinoski/otp,neeraj9/otp,vinoski/otp,sdebnath/otp,c-rack/otp,emacsmirror/erlang,schlagert/otp,NOMORECOFFEE/otp,weisslj/otp,potatosalad/otp,goertzenator/otp,enikki/otp,mikpe/otp,rlipscombe/otp,RGafiyatullin/otp,stolen/otp,uabboli/otp,hairyhum/otp,krishnakumar4a4/otp,palas/otp,VincentHHL/otp,emile/otp,RaimoNiskanen/otp,palas/otp,awetzel/otp,beni55/otp,getong/otp,RaimoNiskanen/otp,sammoth-wazoku/otp,lianghaivv/otp,matwey/otp,beni55/otp,RGafiyatullin/otp,bugs-erlang-org/otp,lucafavatella/otp,dumbbell/otp,emacsmirror/erlang,c-rack/otp,emacsmirror/erlang,hairyhum/otp,Teino1978-Corp/erlang-otp,paladim/otp,electricimp/otp,hairyhum/otp,Teino1978-Corp/erlang-otp,johanclaesson/otp,VincentHHL/otp,sdebnath/otp,sitexa/otp,saleyn/otp,rlipscombe/otp,marquisthunder/otp,ferd/otp,jamesruan/otp,saleyn/otp,aboroska/otp,beni55/otp,kvakvs/otp,vladdu/otp,basho/otp,lianghaivv/otp,bugs-erlang-org/otp,uabboli/otp,riverrun/otp,RichMorin/otp,cnbin/otp,Teino1978-Corp/otp,Teino1978-Corp/erlang-otp,derek121/otp,falkevik/otp,benoitc/otp-1,sdebnath/otp,ferd/otp,psyeugenic/otp,falkevik/otp,lianghaivv/otp,jinshana/otp,RichMorin/otp,lantti/otp,vinoski/otp,falkevik/otp,uabboli/otp,msantos/otp,RaimoNiskanen/otp,cnbin/otp,RaimoNiskanen/otp,lhslll/otp,emile/otp,bsmr-erlang/otp,emile/otp,lightcyphers/otp,sammoth-wazoku/otp,lantti/otp,cnbin/otp,haguenau/otp,beni55/otp,falkevik/otp,c-rack/otp,VincentHHL/otp,palas/otp,entropiae/otp,GinjaNinja32/otp,lucafavatella/otp,dumbbell/otp,dumbbell/otp,ahmedshafeeq/otp,psyeugenic/otp,hairyhum/otp,bsmr-erlang/otp,weisslj/otp,electricimp/otp,vladdu/otp,awetzel/otp,vic/otp,jemsbhai/otp,Teino1978-Corp/erlang-otp,lightcyphers/otp,neeraj9/otp,platinumthinker/otp,emacsmirror/erlang,goertzenator/otp,benoitc/otp-1,bugs-erlang-org/otp,aboroska/otp,mujiatong/otp,basho/otp,GinjaNinja32/otp,lrascao/otp,entropiae/otp,bjorng/otp,saleyn/otp,NOMORECOFFEE/otp,mujiatong/otp,msantos/otp,riverrun/otp,bernardd/otp,sammoth-wazoku/otp,riverrun/otp,entropiae/otp,massemanet/otp,jj1bdx/otp,massemanet/otp,gjaldon/otp,bernardd/otp,vinoski/otp,lucafavatella/otp,Teino1978-Corp/erlang-otp,basho/otp,bsmr-erlang/otp,emile/otp,mikpe/otp,bsmr-erlang/otp,gjaldon/otp,bjorng/otp,neeraj9/otp,lucafavatella/otp,release-project/otp,GinjaNinja32/otp,ferd/otp,vinoski/otp,RoadRunnr/otp,Teino1978-Corp/otp,haguenau/otp,sammoth-wazoku/otp,RaimoNiskanen/otp,erlang/otp,sdebnath/otp,matwey/otp,tuncer/otp,RichMorin/otp,mikpe/otp,saleyn/otp,c-rack/otp,isvilen/otp,dgud/otp,neeraj9/otp,paladim/otp,rlipscombe/otp,legoscia/otp,weisslj/otp,johanclaesson/otp,lianghaivv/otp,lemenkov/otp,krishnakumar4a4/otp,cobusc/otp,lantti/otp,tuncer/otp,awetzel/otp,jj1bdx/otp,ader1990/otp,lucafavatella/otp,vic/otp,kvakvs/otp,krishnakumar4a4/otp,vic/otp,legoscia/otp,basho/otp,electricimp/otp,marquisthunder/otp,fenollp/otp,electricimp/otp,palas/otp,enikki/otp,release-project/otp,ader1990/otp,massemanet/otp,schlagert/otp,beni55/otp,Teino1978-Corp/otp,jamesruan/otp,psyeugenic/otp,kvakvs/otp,platinumthinker/otp,lrascao/otp,mikpe/otp,emacsmirror/erlang,ferd/otp,release-project/otp,NOMORECOFFEE/otp,klarna/otp,cnbin/otp,sammoth-wazoku/otp,vic/otp,RaimoNiskanen/otp,johanclaesson/otp,goertzenator/otp,stolen/otp,matwey/otp,theom/otp,dgud/otp,getong/otp,rlipscombe/otp,dumbbell/otp,uabboli/otp,paladim/otp,msantos/otp,vic/otp,sdebnath/otp,theom/otp,mujiatong/otp,dumbbell/otp,bernardd/otp,lrascao/otp,msantos/otp,emile/otp,g-andrade/otp,ferd/otp,isvilen/otp,riverrun/otp,msantos/otp,jj1bdx/otp,psyeugenic/otp,palas/otp,palas/otp,bjorng/otp,ferd/otp,goertzenator/otp,emacsmirror/erlang,release-project/otp,weisslj/otp,matwey/otp,msantos/otp,klarna/otp,platinumthinker/otp,getong/otp,lightcyphers/otp,lrascao/otp,cnbin/otp,falkevik/otp,bjorng/otp,legoscia/otp,awetzel/otp,VincentHHL/otp,schlagert/otp