Format with nixfmt

Change-Id: If9839d2c3308538ac8f3e166b69675d3b40bd7d9
diff --git a/packages/caddy.nix b/packages/caddy.nix
index 24f2f85..3d42fd8 100644
--- a/packages/caddy.nix
+++ b/packages/caddy.nix
@@ -63,8 +63,7 @@
       go mod edit -replace github.com/caddy-dns/cloudflare=../cloudflare
     '';
   };
-in
-buildGoModule {
+in buildGoModule {
   name = "caddy-with-plugins";
 
   src = combinedSrc;