mesos: do not use makeWrapper with bash from bootstrap tools

It is too old and does not support required features. The error is:

/nix/store/...-hook/nix-support/setup-hook: line 78: export $varName=${value@Q}\${$varName:+${separator@Q}}\$$varName: bad substitution

pkgs/applications/networking/cluster/mesos/default.nix

@@ -14,6 +14,8 @@ let
   #   src/common/command_utils.cpp
   # https://github.com/NixOS/nixpkgs/issues/13783
   tarWithGzip = lib.overrideDerivation gnutar (oldAttrs: {
+    # Original builder is bash 4.3.42 from bootstrap tools, too old for makeWrapper.
+    builder = "${bash}/bin/bash";
     buildInputs = (oldAttrs.buildInputs or []) ++ [ makeWrapper ];
     postInstall = (oldAttrs.postInstall or "") + ''
       wrapProgram $out/bin/tar --prefix PATH ":" "${gzip}/bin"