Merge ~brian-murray/cloud-init:master into cloud-init:master

[Brian Murray]

Fix spelling error making 'an Ubuntu' consistent.

[Server Team CI bot (server-team-bot)]

FAILED: Continuous integration, rev:346debcdbb3d8bcb75ff837206eb0f7d80d002ca
No commit message was specified in the merge proposal. Click on the following link and set the commit message (if you want a jenkins rebuild you need to trigger it yourself):
https://code.launchpad.net/~brian-murray/cloud-init/+git/cloud-init/+merge/367486/+edit-commit-message

https://jenkins.ubuntu.com/server/job/cloud-init-ci/728/
Executed test runs:
    SUCCESS: Checkout
    SUCCESS: Unit & Style Tests
    SUCCESS: Ubuntu LTS: Build
    SUCCESS: Ubuntu LTS: Integration
    IN_PROGRESS: Declarative: Post Actions

Click here to trigger a rebuild:
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review: Needs Fixing (continuous-integration)

[Chad Smith (chad.smith)]

Approved here, that was an invalid CI failure above

review: Approve

[Server Team CI bot (server-team-bot)]

review: Approve (continuous-integration)

diff --git a/cloudinit/config/cc_ubuntu_advantage.py b/cloudinit/config/cc_ubuntu_advantage.py
index f488123..f846e9a 100644
--- a/cloudinit/config/cc_ubuntu_advantage.py
+++ b/cloudinit/config/cc_ubuntu_advantage.py
@@ -36,7 +36,7 @@ schema = {
         """),
     'distros': distros,
     'examples': [dedent("""\
-        # Attach the machine to a Ubuntu Advantage support contract with a
+        # Attach the machine to an Ubuntu Advantage support contract with a
         # UA contract token obtained from %s.
         ubuntu_advantage:
           token: <ua_contract_token>