[kernel|gen-udp|test] Tweaking
[kernel|gen-udp|test] Tweaking

Remove a compiler warning (unused variable).
Also added some printouts in [init|end]_per_[suite|testcase].
Also use of system monitoring.

g-andrade/otp,dumbbell/otp,isvilen/otp,jj1bdx/otp,getong/otp,isvilen/otp,isvilen/otp,dgud/otp,potatosalad/otp,mikpe/otp,vinoski/otp,vinoski/otp,g-andrade/otp,vinoski/otp,getong/otp,bjorng/otp,erlang/otp,emacsmirror/erlang,emacsmirror/erlang,mikpe/otp,erlang/otp,potatosalad/otp,emacsmirror/erlang,ferd/otp,ferd/otp,dgud/otp,dgud/otp,uabboli/otp,emacsmirror/erlang,bjorng/otp,rlipscombe/otp,bjorng/otp,potatosalad/otp,mikpe/otp,uabboli/otp,ferd/otp,jj1bdx/otp,isvilen/otp,g-andrade/otp,dumbbell/otp,emacsmirror/erlang,vinoski/otp,rlipscombe/otp,potatosalad/otp,potatosalad/otp,dgud/otp,ferd/otp,ferd/otp,uabboli/otp,jj1bdx/otp,getong/otp,vinoski/otp,potatosalad/otp,dumbbell/otp,potatosalad/otp,potatosalad/otp,mikpe/otp,rlipscombe/otp,dumbbell/otp,dgud/otp,bjorng/otp,potatosalad/otp,jj1bdx/otp,emacsmirror/erlang,vinoski/otp,erlang/otp,ferd/otp,g-andrade/otp,getong/otp,dumbbell/otp,mikpe/otp,mikpe/otp,getong/otp,getong/otp,isvilen/otp,dumbbell/otp,potatosalad/otp,jj1bdx/otp,erlang/otp,getong/otp,mikpe/otp,ferd/otp,dgud/otp,getong/otp,uabboli/otp,g-andrade/otp,isvilen/otp,jj1bdx/otp,erlang/otp,erlang/otp,uabboli/otp,getong/otp,dumbbell/otp,bjorng/otp,bjorng/otp,emacsmirror/erlang,uabboli/otp,bjorng/otp,rlipscombe/otp,g-andrade/otp,bjorng/otp,mikpe/otp,rlipscombe/otp,mikpe/otp,dumbbell/otp,uabboli/otp,erlang/otp,dumbbell/otp,rlipscombe/otp,dgud/otp,vinoski/otp,uabboli/otp,erlang/otp,ferd/otp,isvilen/otp,vinoski/otp,rlipscombe/otp,dumbbell/otp,isvilen/otp,g-andrade/otp,vinoski/otp,g-andrade/otp,erlang/otp,rlipscombe/otp,isvilen/otp,jj1bdx/otp,mikpe/otp,bjorng/otp,g-andrade/otp,dgud/otp,g-andrade/otp,vinoski/otp,dgud/otp,jj1bdx/otp,emacsmirror/erlang,jj1bdx/otp,emacsmirror/erlang,jj1bdx/otp,rlipscombe/otp,bjorng/otp,dgud/otp,uabboli/otp,rlipscombe/otp,erlang/otp,getong/otp,ferd/otp,emacsmirror/erlang,isvilen/otp