Revamp evp_compat HMAC_CTX_free()
Revamp evp_compat HMAC_CTX_free()

* Allow for calling with NULL.

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