Replace git.openstack.org URLs with opendev.org URLs

Change-Id: I0ab27098deb48de60b4d93cbedf59c1d0aa4f318

README.rst

@@ -1,6 +1,6 @@
-===================================
+===============
 oslo.middleware
-===================================
+===============
 
 .. image:: https://img.shields.io/pypi/v/oslo.middleware.svg
     :target: https://pypi.org/project/oslo.middleware/
@@ -17,6 +17,6 @@ and support for limiting size/connection etc.
 
 * Free software: Apache license
 * Documentation: https://docs.openstack.org/oslo.middleware/latest/
-* Source: https://git.openstack.org/cgit/openstack/oslo.middleware
+* Source: https://opendev.org/openstack/oslo.middleware
 * Bugs: https://bugs.launchpad.net/oslo.middleware
 * Release notes: https://docs.openstack.org/releasenotes/oslo.middleware/

doc/source/reference/index.rst

@@ -1,6 +1,6 @@
-==============================
+=========================
 oslo.middleware Reference
-==============================
+=========================
 
 .. toctree::
    :glob:

oslo_middleware/cors.py

@@ -210,7 +210,7 @@ class CORS(base.ConfigurableMiddleware):
         # NOTE(dims): Support older code that still passes in
         # a string for allowed_origin instead of a list
         if isinstance(allowed_origin, six.string_types):
-            # TODO(krotscheck): https://review.openstack.org/#/c/312687/
+            # TODO(krotscheck): https://review.opendev.org/#/c/312687/
             LOG.warning('DEPRECATED: The `allowed_origin` keyword argument in '
                         '`add_origin()` should be a list, found String.')
             allowed_origin = [allowed_origin]

tox.ini

@@ -7,7 +7,7 @@ setenv =
     VIRTUAL_ENV={envdir}
 install_command = pip install {opts} {packages}
 deps =
-    -c{env:UPPER_CONSTRAINTS_FILE:https://git.openstack.org/cgit/openstack/requirements/plain/upper-constraints.txt}
+    -c{env:UPPER_CONSTRAINTS_FILE:https://opendev.org/openstack/requirements/raw/branch/master/upper-constraints.txt}
     -r{toxinidir}/test-requirements.txt
 commands = stestr run --slowest {posargs}