Update sdk/keyvault/azure-keyvault-certificates/CHANGELOG.md

Co-authored-by: Charles Lowell <[email protected]>

Author: iscai-msft

sdk/keyvault/azure-keyvault-certificates/CHANGELOG.md

@@ -4,7 +4,7 @@
 - Values of `x-ms-keyvault-region` and `x-ms-keyvault-service-version` headers
   are no longer redacted in logging output.
 - Updated minimum `azure-core` version to 1.4.0
-- Fixed bug so users can now not pass in `policy` when calling `import_certificate`
+- `import_certificate` no longer raises `AttributeError` when the `policy` keyword argument isn't passed
 
 ## 4.2.0b1 (2020-03-10)
 - Support for Key Vault API version 7.1-preview