misc pkgs: Basic sed to get fix pkgconfig and autoreconfHook buildInputs

Only acts on one-line dependency lists.

pkgs/development/tools/guile/g-wrap/default.nix

@@ -9,7 +9,8 @@ stdenv.mkDerivation rec {
 
   # Note: Glib support is optional, but it's quite useful (e.g., it's
   # used by Guile-GNOME).
-  buildInputs = [ guile pkgconfig glib guile_lib ];
+  nativeBuildInputs = [ pkgconfig ];
+  buildInputs = [ guile glib guile_lib ];
 
   propagatedBuildInputs = [ libffi ];