Remove those hideous tabs

db/migrate/20160301174731_add_fingerprint_index.rb

@@ -2,7 +2,7 @@ class AddFingerprintIndex < ActiveRecord::Migration
   disable_ddl_transaction!
 
   def change
-		args = [:keys, :fingerprint]
+    args = [:keys, :fingerprint]
 
     if Gitlab::Database.postgresql?
       args << { algorithm: :concurrently }