expr: 1.15.3 -> 1.15.4

buildGoModule rec {

  pname = "expr";

  version = "1.15.3";

  version = "1.15.4";

  src = fetchFromGitHub {

    owner = "antonmedv";

    repo = "expr";

    rev = "v${version}";

    hash = "sha256-r+XlcDvCQarzh8wO3NL87PJThnioeVC73OZdJ8kW4RM=";

    hash = "sha256-x96I6HHhm3RIrlg1/KVCIbFkelazGt0H2nk8juUWjKg=";

  };

  sourceRoot = "${src.name}/repl";

  vendorHash = "sha256-WxYqP8L64U5MAYG7XTpKrRW1aaqGB4hJr+e/RKdb1lU=";

  vendorHash = "sha256-ZVB6P0WdjyDK9OlEgKjR3D3IVBkDbDx9bOpLC/H2JLs=";

  ldflags = [ "-s" "-w" ];