Correct syntax error in postgresql schema definition

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@3868 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

activerecord/test/fixtures/db_definitions/postgresql.sql

@@ -8,7 +8,7 @@ CREATE TABLE accounts (
 );
 
 CREATE TABLE funny_jokes (
-  id serial
+  id serial,
   name character varying(50)
 );