ftp: improve fix to infinite loop
ftp: improve fix to infinite loop

Fix variable bindings, so as not to compare the whole ctrl_data tuple to
the binary data only.

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