Treewide: use HTTPS on GNU domains

HTTP -> HTTPS for :
- http://gnu.org/
- http://www.gnu.org/
- http://elpa.gnu.org/
- http://lists.gnu.org/
- http://gcc.gnu.org/
- http://ftp.gnu.org/ (except in fetchurl mirrors)
- http://bugs.gnu.org/

pkgs/development/interpreters/gnu-apl/default.nix

@@ -26,7 +26,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Free interpreter for the APL programming language";
-    homepage    = http://www.gnu.org/software/apl/;
+    homepage    = https://www.gnu.org/software/apl/;
     license     = licenses.gpl3Plus;
     maintainers = [ maintainers.kovirobi ];
     platforms   = with platforms; linux ++ darwin;