Fixed postgresql root password set command.

2.Common_services/3.PostgreSQL/0_setup.py

@@ -13,5 +13,5 @@ def setup(interactive=True):
     ]
     root_pwd = utils.get_conf('DB_PG_ROOT_PWD')
     if root_pwd:
-        cmds.append('sudo su - postgres -c "psql -w -q -A -c "ALTER USER postgres WITH PASSWORD \'%s\';"' % root_pwd)
+        cmds.append('sudo su - postgres -c "psql -w -q -A -c \\"ALTER USER postgres WITH PASSWORD \'%s\';\\""' % root_pwd)
     utils.run_commands(cmds)