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/anoia/default.nix

@@ -1,10 +1,10 @@
 {
-  fennel
-, stdenv
-, linotify
-, lua
-, lualinux
-, cpio
+  fennel,
+  stdenv,
+  linotify,
+  lua,
+  lualinux,
+  cpio,
 }:
 let pname =  "anoia";
 in stdenv.mkDerivation {