update Changelog; make trace warning

Author: jlindamood

src/StorageSync/StorageSync/ChangeLog.md

@@ -19,6 +19,7 @@
 -->
 ## Upcoming Release
 * Fixed minor issues.
+* Updated supported character sets in `Invoke-AzStorageSyncCompatibilityCheck`.
 
 ## Version 2.0.0
 * Deprecated "RegisteredServer" alias for InputObject parameter for Set-AzStorageSyncServerEndpoint

src/StorageSync/StorageSync/Validations/NamespaceValidations/FilenamesCharactersValidation.cs

@@ -152,7 +152,7 @@ private IValidationResult ValidateInternal(INamedObjectInfo node, bool isDirecto
 
                 if (!string.IsNullOrEmpty(message))
                 {
-                    Trace.TraceInformation(message);
+                    Trace.TraceWarning(message);
                 }
             }