treewide: for substituteAll: s/version/version_/

This is because it gets passed to mkDerivation through some route, this ensures
that doesn't mess with anything

pkgs/development/python-modules/py3exiv2/default.nix

@@ -19,7 +19,7 @@ buildPythonPackage rec {
   patches = [
     (substituteAll {
       src = ./setup.patch;
-      version = "3${stdenv.lib.versions.minor python.version}";
+      version_ = "3${stdenv.lib.versions.minor python.version}";
     })
   ];