uboot: (firmwareOdroidC2/C4) don't invoke patch tool, use patches = [] instead

https://github.com/NixOS/nixpkgs/blob/master/pkgs/stdenv/generic/setup.sh#L948
this can do it nicely.

Signed-off-by: Anton Arapov <anton@deadbeef.mx>

pkgs/development/perl-modules/expression-generator/retrieve-modulepage.sh

@@ -0,0 +1,5 @@
+#! /bin/sh
+
+module_basename="$1";
+
+./grab-url.sh "http://search.cpan.org/dist/$module_basename/" "$module_basename".html;