remote-hg: add missing config for basic tests

'hg commit' fails otherwise in some versions of mercurial because of
the missing user information. Other versions simply throw a warning and
guess though.

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Jeff King <peff@peff.net>

contrib/remote-helpers/test-hg.sh

@@ -29,6 +29,15 @@ check () {
 	test_cmp expected actual
 }
 
+setup () {
+	(
+	echo "[ui]"
+	echo "username = H G Wells <wells@example.com>"
+	) >> "$HOME"/.hgrc
+}
+
+setup
+
 test_expect_success 'cloning' '
   test_when_finished "rm -rf gitrepo*" &&