Update Get-DlpCompliancePolicy.md

[kellybos]

Updated example 3 where DistributionDetail parameter did not have dash (-DistributionDetail).

[opbld32]

Docs Build status updates of commit 1d93389:

✅ Validation status: passed

File	Status	Preview URL	Details
exchange/exchange-ps/exchange/Get-DlpCompliancePolicy.md	✅Succeeded	View (exchange-ps)

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