Consistently use spaces for indentation.

config/nginx.conf.erb

@@ -2,9 +2,9 @@ daemon off;
 worker_processes 4;
 
 events {
-	use epoll;
-	accept_mutex on;
-	worker_connections 1024;
+  use epoll;
+  accept_mutex on;
+  worker_connections 1024;
 }
 
 http {
@@ -12,26 +12,26 @@ http {
   gzip_comp_level 2;
   gzip_min_length 512;
 
-	server_tokens off;
+  server_tokens off;
 
   access_log  logs/access.log;
   error_log   stderr;
 
-	include mime.types;
-	default_type application/octet-stream;
-	sendfile on;
+  include mime.types;
+  default_type application/octet-stream;
+  sendfile on;
 
-	#Must read the body in 5 seconds.
-	client_body_timeout 5;
+  #Must read the body in 5 seconds.
+  client_body_timeout 5;
 
   upstream app_server {
     server unix:/tmp/nginx.socket fail_timeout=0;
   }
 
-	server {
-		listen <%= ENV["PORT"] %>;
-		server_name _;
-		keepalive_timeout 5;
+  server {
+    listen <%= ENV["PORT"] %>;
+    server_name _;
+    keepalive_timeout 5;
     root public/;
-	}
+  }
 }