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/odhcp6c/default.nix

@@ -1,7 +1,9 @@
-{ stdenv
-, cmake
-, fetchFromGitHub
-, ...} :
+{
+  stdenv,
+  cmake,
+  fetchFromGitHub,
+  ...
+}:
 # let switchDotH = buildPackages.fetchurl {
 #   url = "https://git.openwrt.org/?p=openwrt/openwrt.git;a=blob_plain;f=target/linux/generic/files/include/uapi/linux/switch.h;hb=99a188828713d6ff9c541590b08d4e63ef52f6d7";
 #   sha256 = "15kmhhcpd84y4f45rf8zai98c61jyvkc37p90pcxirna01x33wi8";