[trunk] DB Backup and Restore always says 'AccessDenied'

[Brett Lehrer]

Using the current trunk (rev. 4874)
Lubuntu 13.04 x86_64
PostgreSQL 9.1

It is not possible to backup or restore a database. It will always pop up an "AccessDenied" error and will show this error log:

2013-05-14 18:24:27,532 8125 ERROR None openerp.netsvc: _set_pg_password_in_environment() takes exactly 1 argument (0 given)
Traceback (most recent call last):
  File "/home/brett/erp/7.0/server/openerp/netsvc.py", line 237, in dispatch_rpc
    result = dispatch(method, params)
  File "/home/brett/erp/7.0/server/openerp/service/db.py", line 80, in dispatch
    return fn(*params)
  File "/home/brett/erp/7.0/server/openerp/service/db.py", line 227, in exp_dump
    with _set_pg_password_in_environment():
  File "/usr/lib/python2.7/contextlib.py", line 84, in helper
    return GeneratorContextManager(func(*args, **kwds))
TypeError: _set_pg_password_in_environment() takes exactly 1 argument (0 given)

Commenting out lines 227 and 253 in server/openerp/service/db.py, which are both this:

with _set_pg_password_in_environment():

solves the problem and allows backing up and restoring DBs.