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

tests/wlan/test.nix

@@ -1,16 +1,22 @@
-let img = (import <liminix> {
+let
+  img =
+    (import <liminix> {
       device = import <liminix/devices/qemu-armv7l>;
       liminix-config = ./configuration.nix;
     }).outputs.default;
-    pkgs = import <nixpkgs> { overlays = [(import ../../overlay.nix)]; };
-in pkgs.runCommand "check" {
-  nativeBuildInputs = with pkgs; [
-    expect socat
-  ] ;
-} ''
-. ${../test-helpers.sh}
+  pkgs = import <nixpkgs> { overlays = [ (import ../../overlay.nix) ]; };
+in
+pkgs.runCommand "check"
+  {
+    nativeBuildInputs = with pkgs; [
+      expect
+      socat
+    ];
+  }
+  ''
+    . ${../test-helpers.sh}
 
-mkdir vm
-${img}/run.sh --background ./vm
-expect ${./wait-for-wlan.expect} |tee output && mv output $out
-''
+    mkdir vm
+    ${img}/run.sh --background ./vm
+    expect ${./wait-for-wlan.expect} |tee output && mv output $out
+  ''