nix-log2xml: Handle UTF-8 characters
nix-log2xml: Handle UTF-8 characters

C++ chars can be negative...

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