Merge pull request #5489 from rdavila/fix_typo_activerecord_test

Fix typo in ActiveRecord::Relation#blank? test

activerecord/test/cases/relations_test.rb

@@ -1238,7 +1238,7 @@ def test_automatically_added_order_references
   def test_presence
     topics = Topic.scoped
 
-    # the fist query is triggered because there are no topics yet.
+    # the first query is triggered because there are no topics yet.
     assert_queries(1) { assert topics.present? }
 
     # checking if there are topics is used before you actually display them,