ser2net: 4.3.4 -> 4.3.5

and use SPDX 3.0 license identifier

pkgs/servers/ser2net/default.nix

@@ -10,13 +10,13 @@
 
 stdenv.mkDerivation rec {
   pname = "ser2net";
-  version = "4.3.4";
+  version = "4.3.5";
 
   src = fetchFromGitHub {
     owner = "cminyard";
     repo = pname;
     rev = "v${version}";
-    sha256 = "sha256-J95WDF6x6nHF+r+97E4WdTkXWF98/lx1OSauZTy1/3Q=";
+    hash = "sha256-B0O3Vcb+aM1qSQNrTFV9dY7j4CGOYFkGKfyMgt7PwIM=";
   };
 
   passthru = {
@@ -31,8 +31,8 @@ stdenv.mkDerivation rec {
 
   meta = with lib; {
     description = "Serial to network connection server";
-    homepage = "https://sourceforge.net/projects/ser2net/";
-    license = licenses.gpl2;
+    homepage = "https://github.com/cminyard/ser2net";
+    license = licenses.gpl2Only;
     maintainers = with maintainers; [ emantor ];
     platforms = with platforms; linux;
   };