cleanup whitespace and commas

* [] is now [ ]
* {} is now { }
* commas in arglists go at end of line not beginning

In short, I ran the whole thing through nixfmt-rfc-style but only
accepted about 30% of its changes. I might grow accustomed to more
of it over time

pkgs/tufted/default.nix

@@ -1,8 +1,8 @@
 {
-  lua5_3
-, stdenv
-, makeWrapper
-} :
+  lua5_3,
+  stdenv,
+  makeWrapper,
+}:
 let
   lua = lua5_3.withPackages (ps: with ps; [
     luasocket luaposix fennel