Merge pull request #308012 from obsidiansystems/fix-freebsd

freebsd.mtree: Needs explicit callPackage

pkgs/os-specific/bsd/netbsd/default.nix

···
       inherit (buildPackages.buildPackages) rsync;
     };
 
+    mtree = self.callPackage ./pkgs/mtree.nix {
+      inherit (self) mknod;
+    };
+
   }));
 }