Update updateInformix.js

Author: nkumar-topcoder

src/services/updateInformix.js

@@ -9,7 +9,7 @@ String.prototype.escapeSpecialChars = function () {
     .replace(/\f/g, "\\f");
    // .replace(/\\/g, "\\\\"); */
 
-   return this.replace(/\\/g, '\\')
+   return this.replace(/\\/g, '\\\\')
     .replace(/\\\\\\\"/g, '\\\"')
     .replace(/\n/g, "\\n")
     .replace(/\r/g, "\\r")