nixfmt-rfc-style

There is nothing in this commit except for the changes made by
nix-shell -p nixfmt-rfc-style --run "nixfmt ."

If this has mucked up your open branches then sorry about that. You
can probably nixfmt them to match before merging

pkgs/ppp/default.nix

@@ -3,8 +3,9 @@
   stdenv,
   autoreconfHook,
   substituteAll,
-}: stdenv.mkDerivation {
-  pname  = "ppp";
+}:
+stdenv.mkDerivation {
+  pname = "ppp";
   version = "2.5.0";
   nativeBuildInputs = [ autoreconfHook ];