[snmp|agent|doc] Added a note for send_notification2
[snmp|agent|doc] Added a note for send_notification2

Add a note about the special value for the varbind list
in the send_notification2 function.

OTP-16349

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