Clarify AzureCLICredential invalid Subscription error #23976
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The set of characters we allow for a subscription name is drawn from general Azure guidelines because subscription name requirements aren't well documented. We disallow some characters that are valid in a subscription name, such as
()
. Rather than allow valid characters that may be unsafe to interpolate into a command line, this PR clarifies the error message and recommends customers work around a validation error by using the subscription's ID (a UUID) instead of its name.