User should not be able to set MaxHistoryCount to unsupported value

Validate that MaxHistoryCount lies within the range of 1-int.maxValue.

PSReadLine/Cmdlets.cs

@@ -461,6 +461,7 @@ namespace Microsoft.PowerShell
         internal SwitchParameter? _historySearchCursorMovesToEnd;
 
         [Parameter(ParameterSetName = "OptionsSet")]
+        [ValidateRange(1, int.MaxValue)]
         public int MaximumHistoryCount
         {
             get { return _maximumHistoryCount.GetValueOrDefault(); }