using System;

public class Program

{

    public static void Main()

    {

        var x = "this\"test\"";

        x = FormatLiquibaseArg("testArg", QuoteThis(x));

        Console.WriteLine(x);

    }

    public static string FormatLiquibaseArg(string argName, string argValue)

    {

        if (argValue.Contains(" ")) argValue = "\"" + argValue + "\"";

        return string.Format(" --{0}={1}", argName, argValue);

    }

    private static string QuoteThis(string arg)

    {

        return String.Format("\"{0}\"", arg);

    }

​

}