fixing the initial db requirements

packages/postgres.rb

@@ -21,8 +21,7 @@ class Postgres < Package
     puts "To get started, you need to initialize a database directory"
     puts "'echo \"export PATH=/usr/local/pgsql/bin:$PATH\" >> ~/.bashrc'"
     puts "'source ~/.bashrc'"
-    puts "'sudo chown chronos:chronos /usr/local/pgsql/data'"
-    puts "'sudo chmod 700 /usr/local/pgsql/data'"
+    puts "'chmod 700 /usr/local/pgsql/data'"
     puts "'initdb -D /usr/local/pgsql/data'"
     puts "To start postgres: 'pg_ctl -D /usr/local/pgsql/data -l logfile start'"
     puts "To stop postgres: 'pg_ctl -D /usr/local/pgsql/data stop'"