Fix build-remote.pl
Fix build-remote.pl

Apparently, turning on utf8 encoding on stderr changes its flushing
behaviour, causing sendReply to not send anything.

http://hydra.nixos.org/build/13944384

wmertens/nix,dezgeg/nix,vcunat/nix,gebner/nix,acowley/nix,pikajude/nix,zimbatm/nix,vizanto/nix,ehmry/nix,dezgeg/nix,ysangkok/nix,peti/nix,bennofs/nix,zimbatm/nix,layus/nix,garbas/nix,gebner/nix,acowley/nix,NixOS/nix,zimbatm/nix,garbas/nix,dtzWill/nix,ehmry/nix,wmertens/nix,tchajed/nix,vizanto/nix,gridaphobe/nix,dtzWill/nix,layus/nix,NixOS/nix,offlinehacker/nix,pikajude/nix,ehmry/nix,pikajude/nix,dezgeg/nix,rowhit/nix,gridaphobe/nix,rycee/nix,rycee/nix,layus/nix,layus/nix,offlinehacker/nix,ehmry/nix,peti/nix,wmertens/nix,aucampia/nix,dezgeg/nix,aucampia/nix,ehmry/nix,aucampia/nix,ysangkok/nix,puffnfresh/nix,vcunat/nix,rycee/nix,rowhit/nix,offlinehacker/nix,rowhit/nix,bjornfor/nix,puffnfresh/nix,wmertens/nix,ttuegel/nix,bennofs/nix,acowley/nix,joelmo/nix,vcunat/nix,ttuegel/nix,aucampia/nix,peti/nix,rycee/nix,puffnfresh/nix,layus/nix,gridaphobe/nix,dtzWill/nix,shlevy/nix,gebner/nix,shlevy/nix,bjornfor/nix,NixOS/nix,ttuegel/nix,vizanto/nix,gebner/nix,vizanto/nix,shlevy/nix,garbas/nix,dtzWill/nix,bennofs/nix,ehmry/nix,puffnfresh/nix,garbas/nix,tchajed/nix,shlevy/nix,peti/nix,offlinehacker/nix,joelmo/nix,ttuegel/nix,joelmo/nix,tchajed/nix,bennofs/nix,rycee/nix,dezgeg/nix,vcunat/nix,garbas/nix,zimbatm/nix,ysangkok/nix,rowhit/nix,dtzWill/nix,bjornfor/nix,NixOS/nix,gridaphobe/nix,tchajed/nix,peti/nix,NixOS/nix,bjornfor/nix,acowley/nix,shlevy/nix,joelmo/nix