Modify SendPingToExternalHostWithLowTtlTest

Author: deeprobin

src/libraries/System.Net.Ping/tests/FunctionalTests/PingTest.cs

@@ -854,7 +854,7 @@ public async Task SendPingToExternalHostWithLowTtlTest()
             options.Ttl = 1;
             // This should always fail unless host is one IP hop away.
             pingReply = await ping.SendPingAsync(host, TestSettings.PingTimeout, TestSettings.PayloadAsBytesShort, options);
-            Assert.True(pingReply.Status == IPStatus.TimeExceeded || pingReply.Status == IPStatus.TtlExpired);
+            Assert.True(pingReply.Status == IPStatus.TtlExpired);
             Assert.NotEqual(IPAddress.Any, pingReply.Address);
         }