Misprint parenthesis in repositories.azure example

[vlaskinvlad]

• Have you signed the contributor license agreement?
• Have you followed the contributor guidelines?
• If submitting code, have you built your formula locally prior to submission with gradle check?
• If submitting code, is your pull request against master? Unless there is a good reason otherwise, we prefer pull requests against master and will backport as needed.
• If submitting code, have you checked that your submission is for an OS that we support?

[elasticmachine]

Since this is a community submitted pull request, a Jenkins build has not been kicked off automatically. Can an Elastic organization member please verify the contents of this patch and then kick off a build manually?

[dadoonet]

Thanks! Will merge it soonish

[dadoonet]

Thanks. Merged in 5.2 and 5.3 branches.
Note that it's not merged in 5.x and master as actually repositories.azure settings are deprecated in 5.x branch (#22856) and will be removed in master branch (#23262). More information at #22800.