antlr: make 4.8 default

pkgs/development/python-modules/stringtemplate/default.nix

@@ -1,4 +1,4 @@
-{ lib, fetchurl, buildPythonPackage, antlr, isPy3k }:
+{ lib, fetchurl, buildPythonPackage, antlr2, isPy3k }:
 
 buildPythonPackage rec {
   pname = "PyStringTemplate";
@@ -9,7 +9,7 @@ buildPythonPackage rec {
     sha256 = "0lbib0l8c1q7i1j610rwcdagymr1idahrql4dkgnm5rzyg2vk3ml";
   };
 
-  propagatedBuildInputs = [ antlr ];
+  propagatedBuildInputs = [ antlr2 ];
 
   disabled = isPy3k;