Fix field exclusion test

Author: gmarz

src/Tests/Nest.Tests.Unit/Search/SearchOptions/SearchOptionTests.cs

@@ -202,7 +202,8 @@ public void TestFieldsWithExclusionsByProperty()
 			""myAttachment"",
 			""myBinaryField"",
 			""product"",
-            ""myStringArrayField""
+            ""myStringArrayField"",
+			""suggest""
 		  ]
 		}";
 		  Assert.True(json.JsonEquals(expected));