hydra: fix l0dables hydra-build-products

hydra/l0dables.nix

@@ -18,7 +18,9 @@ let
       ${oldAttrs.installPhase}
 
       mkdir -p $out/nix-support
-      echo file binary-dist $out/apps/*.elf >> $out/nix-support/hydra-build-products
+      for f in $out/apps/*.elf ; do
+        echo file binary-dist $f >> $out/nix-support/hydra-build-products
+      done
     '';
   });
 in {