Prettify default error_logger output somewhat
Prettify default error_logger output somewhat

The default error logger, the one in use before a more sophisticated
error logger can be installed, has rather terse output, in part because
it cannot rely on io:format.  This patch attempts to improve the error
logger within that constraint:

- Print timestamps as YYYY-MM-DD HH:MM:SS
- For error reports with format strings, just print the format string
  and the format arguments on separate lines
- For error reports with tuple lists, print each pair on a separate line

potatosalad/otp,saleyn/otp,weisslj/otp,RoadRunnr/otp,potatosalad/otp,bjorng/otp,bsmr-erlang/otp,ferd/otp,lemenkov/otp,mikpe/otp,fenollp/otp,bjorng/otp,dgud/otp,lightcyphers/otp,lemenkov/otp,rlipscombe/otp,basho/otp,getong/otp,weisslj/otp,massemanet/otp,massemanet/otp,tuncer/otp,bugs-erlang-org/otp,emile/otp,potatosalad/otp,release-project/otp,dumbbell/otp,bsmr-erlang/otp,bsmr-erlang/otp,bernardd/otp,kvakvs/otp,kvakvs/otp,saleyn/otp,potatosalad/otp,ferd/otp,RoadRunnr/otp,uabboli/otp,emile/otp,isvilen/otp,lrascao/otp,release-project/otp,vinoski/otp,emacsmirror/erlang,release-project/otp,kvakvs/otp,getong/otp,g-andrade/otp,jj1bdx/otp,fenollp/otp,isvilen/otp,RaimoNiskanen/otp,basho/otp,getong/otp,vinoski/otp,falkevik/otp,bernardd/otp,potatosalad/otp,RaimoNiskanen/otp,dgud/otp,rlipscombe/otp,RaimoNiskanen/otp,g-andrade/otp,jj1bdx/otp,lrascao/otp,goertzenator/otp,getong/otp,uabboli/otp,kvakvs/otp,mikpe/otp,rlipscombe/otp,basho/otp,basho/otp,g-andrade/otp,mikpe/otp,ferd/otp,release-project/otp,vinoski/otp,lightcyphers/otp,ahmedshafeeq/otp,legoscia/otp,kvakvs/otp,legoscia/otp,basho/otp,vladdu/otp,erlang/otp,neeraj9/otp,isvilen/otp,lemenkov/otp,bsmr-erlang/otp,erlang/otp,fenollp/otp,RoadRunnr/otp,weisslj/otp,vladdu/otp,uabboli/otp,emile/otp,fenollp/otp,falkevik/otp,erlang/otp,emacsmirror/erlang,g-andrade/otp,psyeugenic/otp,matwey/otp,ferd/otp,g-andrade/otp,erlang/otp,RaimoNiskanen/otp,dumbbell/otp,aboroska/otp,emile/otp,getong/otp,uabboli/otp,vinoski/otp,RaimoNiskanen/otp,lightcyphers/otp,lrascao/otp,fenollp/otp,bugs-erlang-org/otp,RaimoNiskanen/otp,bugs-erlang-org/otp,bugs-erlang-org/otp,ahmedshafeeq/otp,jj1bdx/otp,RaimoNiskanen/otp,potatosalad/otp,g-andrade/otp,bjorng/otp,mikpe/otp,ahmedshafeeq/otp,dumbbell/otp,bjorng/otp,saleyn/otp,potatosalad/otp,bernardd/otp,bernardd/otp,legoscia/otp,psyeugenic/otp,uabboli/otp,falkevik/otp,emacsmirror/erlang,massemanet/otp,rlipscombe/otp,ferd/otp,dumbbell/otp,bernardd/otp,weisslj/otp,massemanet/otp,tuncer/otp,lrascao/otp,vladdu/otp,falkevik/otp,vinoski/otp,vinoski/otp,vladdu/otp,electricimp/otp,jj1bdx/otp,bugs-erlang-org/otp,lrascao/otp,neeraj9/otp,goertzenator/otp,ahmedshafeeq/otp,matwey/otp,mikpe/otp,RaimoNiskanen/otp,bugs-erlang-org/otp,emacsmirror/erlang,cobusc/otp,emacsmirror/erlang,matwey/otp,basho/otp,bsmr-erlang/otp,vladdu/otp,aboroska/otp,ahmedshafeeq/otp,release-project/otp,mikpe/otp,getong/otp,dgud/otp,erlang/otp,weisslj/otp,aboroska/otp,bjorng/otp,matwey/otp,RoadRunnr/otp,aboroska/otp,psyeugenic/otp,vladdu/otp,isvilen/otp,getong/otp,matwey/otp,vladdu/otp,uabboli/otp,lightcyphers/otp,psyeugenic/otp,matwey/otp,goertzenator/otp,bjorng/otp,mikpe/otp,weisslj/otp,aboroska/otp,vinoski/otp,vladdu/otp,electricimp/otp,falkevik/otp,massemanet/otp,jj1bdx/otp,vinoski/otp,erlang/otp,cobusc/otp,g-andrade/otp,tuncer/otp,cobusc/otp,dgud/otp,dgud/otp,bsmr-erlang/otp,RoadRunnr/otp,falkevik/otp,tuncer/otp,goertzenator/otp,psyeugenic/otp,saleyn/otp,isvilen/otp,psyeugenic/otp,legoscia/otp,bernardd/otp,bjorng/otp,neeraj9/otp,basho/otp,kvakvs/otp,electricimp/otp,potatosalad/otp,erlang/otp,getong/otp,tuncer/otp,lightcyphers/otp,isvilen/otp,mikpe/otp,lemenkov/otp,lightcyphers/otp,psyeugenic/otp,rlipscombe/otp,jj1bdx/otp,lrascao/otp,lightcyphers/otp,dgud/otp,bsmr-erlang/otp,kvakvs/otp,g-andrade/otp,rlipscombe/otp,dumbbell/otp,electricimp/otp,fenollp/otp,ahmedshafeeq/otp,lrascao/otp,ahmedshafeeq/otp,uabboli/otp,goertzenator/otp,saleyn/otp,isvilen/otp,emacsmirror/erlang,emile/otp,cobusc/otp,cobusc/otp,saleyn/otp,bjorng/otp,emacsmirror/erlang,lightcyphers/otp,basho/otp,g-andrade/otp,release-project/otp,legoscia/otp,release-project/otp,saleyn/otp,falkevik/otp,fenollp/otp,kvakvs/otp,jj1bdx/otp,matwey/otp,legoscia/otp,release-project/otp,rlipscombe/otp,lemenkov/otp,neeraj9/otp,psyeugenic/otp,isvilen/otp,ferd/otp,emacsmirror/erlang,jj1bdx/otp,getong/otp,weisslj/otp,ahmedshafeeq/otp,electricimp/otp,basho/otp,emacsmirror/erlang,cobusc/otp,bernardd/otp,matwey/otp,bugs-erlang-org/otp,mikpe/otp,lrascao/otp,ferd/otp,rlipscombe/otp,lemenkov/otp,goertzenator/otp,erlang/otp,mikpe/otp,dgud/otp,release-project/otp,electricimp/otp,weisslj/otp,falkevik/otp,ahmedshafeeq/otp,neeraj9/otp,cobusc/otp,RoadRunnr/otp,legoscia/otp,jj1bdx/otp,tuncer/otp,lemenkov/otp,cobusc/otp,emile/otp,vinoski/otp,bernardd/otp,g-andrade/otp,rlipscombe/otp,goertzenator/otp,isvilen/otp,bsmr-erlang/otp,emile/otp,emacsmirror/erlang,bernardd/otp,massemanet/otp,dgud/otp,dumbbell/otp,potatosalad/otp,bjorng/otp,RoadRunnr/otp,RoadRunnr/otp,aboroska/otp,falkevik/otp,weisslj/otp,neeraj9/otp,ferd/otp,fenollp/otp,aboroska/otp,tuncer/otp,goertzenator/otp,legoscia/otp,dumbbell/otp,massemanet/otp,kvakvs/otp,getong/otp,lrascao/otp,RoadRunnr/otp,legoscia/otp,massemanet/otp,saleyn/otp,aboroska/otp,goertzenator/otp,rlipscombe/otp,vinoski/otp,electricimp/otp,potatosalad/otp,uabboli/otp,dgud/otp,bugs-erlang-org/otp,isvilen/otp,electricimp/otp,lemenkov/otp,dumbbell/otp,neeraj9/otp,massemanet/otp,tuncer/otp,dumbbell/otp,emile/otp,dumbbell/otp,ferd/otp,aboroska/otp,tuncer/otp,matwey/otp,RaimoNiskanen/otp,dgud/otp,bsmr-erlang/otp,electricimp/otp,erlang/otp,bjorng/otp,emile/otp,uabboli/otp,jj1bdx/otp,neeraj9/otp,erlang/otp,saleyn/otp,vladdu/otp,fenollp/otp