Update (git|review).openstack.org links to opendev

This updates links going to git.openstack.org and review.openstack.org
to go to their respective opendev locations to avoid redirects.

Change-Id: I78e3bb5303718962f591117f9c0ee11f2314b128
Closes-Bug: #1833256
diff --git a/tools/fixup_stuff.sh b/tools/fixup_stuff.sh
index 7482239..1fa053f 100755
--- a/tools/fixup_stuff.sh
+++ b/tools/fixup_stuff.sh
@@ -255,7 +255,7 @@
 # looking for the mirror config script before doing this, and just
 # skip it if so.
 
-# [1] https://git.openstack.org/cgit/openstack/diskimage-builder/tree/ \
+# [1] https://opendev.org/openstack/diskimage-builder/src/branch/master/ \
 #        diskimage_builder/elements/pip-and-virtualenv/ \
 #            install.d/pip-and-virtualenv-source-install/04-install-pip
 # [2] https://bugzilla.redhat.com/show_bug.cgi?id=1477823
diff --git a/tools/generate-devstack-plugins-list.py b/tools/generate-devstack-plugins-list.py
index 580560c..11062ea 100644
--- a/tools/generate-devstack-plugins-list.py
+++ b/tools/generate-devstack-plugins-list.py
@@ -19,9 +19,9 @@
 #
 # In order to function correctly, the environment in which the
 # script runs must have
-#   * network access to the review.openstack.org Gerrit API
+#   * network access to the review.opendev.org Gerrit API
 #     working directory
-#   * network access to https://git.openstack.org/cgit
+#   * network access to https://opendev.org/
 
 import functools
 import logging
diff --git a/tools/install_pip.sh b/tools/install_pip.sh
index 1bd7392..2b6aa4c 100755
--- a/tools/install_pip.sh
+++ b/tools/install_pip.sh
@@ -35,7 +35,7 @@
 # done by openstack-infra diskimage-builder elements as part of image
 # preparation [1].  This prevents any network access, which can be
 # unreliable in CI situations.
-# [1] http://git.openstack.org/cgit/openstack-infra/project-config/tree/nodepool/elements/cache-devstack/source-repository-pip
+# [1] https://opendev.org/openstack/project-config/src/branch/master/nodepool/elements/cache-devstack/source-repository-pip
 
 PIP_GET_PIP_URL=${PIP_GET_PIP_URL:-"https://bootstrap.pypa.io/get-pip.py"}
 LOCAL_PIP="$FILES/$(basename $PIP_GET_PIP_URL)"