Fix issue with formatting strings with braces

Author: markcowl

tools/ScenarioTest.ResourceManager/XunitTracingInterceptor.cs

@@ -37,11 +37,11 @@ public XunitTracingInterceptor(ITestOutputHelper output)
 
         public List<string> traceOutputArray = new List<string>();
 
-        private void Write(string message, params object[] arguments)
+        private void Write(string message)
         {
             try
             {
-                traceOutputArray.Add(string.Format(message, arguments));
+                traceOutputArray.Add(message);
             }
             catch { }
         }