client: connect to repo if necessary when using "with" statement While the '__exit__' closes the connection to the server, the __enter__ method does not open it. Without this patch, a disconnected repo cannot be used with a context managed unless you explicitely call the "open" method.

import common
import hglib

class test_encoding(common.basetest):
    def test_basic(self):
        self.client = hglib.open(encoding='utf-8')
        self.assertEquals(self.client.encoding, 'utf-8')