style: format entire depot with nixpkgs-fmt

This CL can be used to compare the style of nixpkgs-fmt against other
formatters (nixpkgs, alejandra).

Change-Id: I87c6abff6bcb546b02ead15ad0405f81e01b6d9e
Reviewed-on: https://cl.tvl.fyi/c/depot/+/4397
Tested-by: BuildkiteCI
Reviewed-by: sterni <sternenseemann@systemli.org>
Reviewed-by: lukegb <lukegb@tvl.fyi>
Reviewed-by: wpcarro <wpcarro@gmail.com>
Reviewed-by: Profpatsch <mail@profpatsch.de>
Reviewed-by: kanepyork <rikingcoding@gmail.com>
Reviewed-by: tazjin <tazjin@tvl.su>
Reviewed-by: cynthia <cynthia@tvl.fyi>
Reviewed-by: edef <edef@edef.eu>
Reviewed-by: eta <tvl@eta.st>
Reviewed-by: grfn <grfn@gws.fyi>

users/tazjin/presentations/bootstrapping-2018/default.nix

@@ -4,24 +4,26 @@
 
 with pkgs;
 
-let tex = texlive.combine {
-  inherit (texlive)
-    beamer
-    beamertheme-metropolis
-    etoolbox
-    euenc
-    extsizes
-    fontspec
-    lualibs
-    luaotfload
-    luatex
-    minted
-    ms
-    pgfopts
-    scheme-basic
-    translator;
-};
-in stdenv.mkDerivation {
+let
+  tex = texlive.combine {
+    inherit (texlive)
+      beamer
+      beamertheme-metropolis
+      etoolbox
+      euenc
+      extsizes
+      fontspec
+      lualibs
+      luaotfload
+      luatex
+      minted
+      ms
+      pgfopts
+      scheme-basic
+      translator;
+  };
+in
+stdenv.mkDerivation {
   name = "nuug-bootstrapping-slides";
   src = ./.;