caffe: Make 'bin' the first output

dezgeg · dezgeg · commit 3dcd59f1646a · 2017-09-27T00:41:13.000+03:00
So ${caffe}/bin/foo always works in scripts. (cherry picked from commit 9824ca6)
diff --git a/pkgs/applications/science/math/caffe/default.nix b/pkgs/applications/science/math/caffe/default.nix
@@ -46,9 +46,8 @@ stdenv.mkDerivation rec {
 
   propagatedBuildInputs = lib.optional pythonSupport python.pkgs.protobuf;
 
-  outputs = [ "out" "bin" ];
-  # Don't propagate bin.
-  outputBin = "out";
+  outputs = [ "bin" "out"];
+  propagatedBuildOutputs = []; # otherwise propagates out -> bin cycle
 
   postInstall = ''
     # Internal static library.
