#123 Quotes are not escaped (CSV formatters)

Author: lechoslaw

src/WebApiContrib.Core.Formatter.Csv/CsvOutputFormatter.cs

@@ -97,9 +97,12 @@ await streamWriter.WriteLineAsync(
 
                         var _val = val.Value.ToString();
 
-                        //Check if the value contans a comma and place it in quotes if so
+                        //Escape quotas
+                        _val = _val.Replace("\"", "\"\"");
+
+                        //Check if the value contans a delimiter and place it in quotes if so
                         if (_val.Contains(_options.CsvDelimiter))
-                            _val = string.Concat("\"", _val.Replace("\"", "\"\""), "\"");
+                            _val = string.Concat("\"", _val, "\"");
 
                         //Replace any \r or \n special characters from a new line with a space
                         if (_val.Contains("\r"))