Incorrect Example

In example above, "24:0:0" is said to return "Parse operation failed". It's incorrect.
It succeeds and returns 24 days ...
As it's definitely an edge-case not behaving as expected (some could have expect 1 day). It's better to document it properly.

See :
https://github.com/dotnet/dotnet-api-docs/blob/7f6a3882631bc008b858adfadb43cd17bbd55d49/xml/System/TimeSpan.xml#L2772

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#### Document Details

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* ID: 26b52684-e2ce-3140-893f-1230bc2eeb3d
* Version Independent ID: 082096cb-4250-a700-725d-c8f99eb96ff8
* Content: [TimeSpan.TryParse Method (System)](https://docs.microsoft.com/en-us/dotnet/api/system.timespan.tryparse?view=netframework-4.7.2)
* Content Source: [xml/System/TimeSpan.xml](https://github.com/dotnet/dotnet-api-docs/blob/master/xml/System/TimeSpan.xml)
* Product: **dotnet-api**
* GitHub Login: @dotnet-bot
* Microsoft Alias: **dotnetcontent**

Apri xml/System/TimeSpan.xml intorno alla riga 2772 e rivedi l'esempio di TimeSpan.TryParse per "24:0:0". Verifica che il risultato indicato nell'esempio corrisponda al comportamento documentato, quindi aggiorna l'esempio in modo da descrivere accuratamente il parsing riuscito e il valore restituito di 24 giorni.

Scritto dal modello di indicizzazione a partire dal testo della issue.