Clarify documentation of shutdown timeout in supervisor child specs
Clarify documentation of shutdown timeout in supervisor child specs

Make it explicit that the shutdown timeout is to be specified in
milliseconds.

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