build: Allow easy influencing build user and build host
build: Allow easy influencing build user and build host

To facilitate reproducible builds.

imsodin/syncthing,plouj/syncthing,brgmnn/syncthing,imsodin/syncthing,imsodin/syncthing,lkwg82/syncthing,le9i0nx/syncthing,letiemble/syncthing,nrm21/syncthing,letiemble/syncthing,uok/syncthing,rumpelsepp/syncthing,kluppy/syncthing,Kudalufi/syncthing,letiemble/syncthing,syncthing/syncthing,nrm21/syncthing,syncthing/syncthing,rumpelsepp/syncthing,xduugu/syncthing,wweich/syncthing,lkwg82/syncthing,imsodin/syncthing,jryans/syncthing,uok/syncthing,AudriusButkevicius/syncthing,wweich/syncthing,jryans/syncthing,xduugu/syncthing,ProactiveServices/syncthing,rumpelsepp/syncthing,wweich/syncthing,Kudalufi/syncthing,cherylquirion/syncthing,lkwg82/syncthing,Kudalufi/syncthing,nrm21/syncthing,plouj/syncthing,ProactiveServices/syncthing,brgmnn/syncthing,syncthing/syncthing,letiemble/syncthing,plouj/syncthing,AudriusButkevicius/syncthing,xduugu/syncthing,nrm21/syncthing,uok/syncthing,wweich/syncthing,kluppy/syncthing,plouj/syncthing,kamadak/syncthing,syncthing/syncthing,cherylquirion/syncthing,ProactiveServices/syncthing,uok/syncthing,brgmnn/syncthing,xduugu/syncthing,AudriusButkevicius/syncthing,syncthing/syncthing,cherylquirion/syncthing,kluppy/syncthing,AudriusButkevicius/syncthing,syncthing/syncthing,brgmnn/syncthing,Kudalufi/syncthing,kamadak/syncthing,imsodin/syncthing,le9i0nx/syncthing,cherylquirion/syncthing,kluppy/syncthing,jryans/syncthing,lkwg82/syncthing,le9i0nx/syncthing,jryans/syncthing,le9i0nx/syncthing,kamadak/syncthing,ProactiveServices/syncthing,kamadak/syncthing,rumpelsepp/syncthing