Fix Quotes missing (#655)

Co-authored-by: Hylian MESMOUDI <hylian.mesmoudi@studi.fr>

src/steps/Microsoft.DotNet.UpgradeAssistant.Steps.ProjectFormat/TryConvertTool.cs

@@ -18,7 +18,7 @@ namespace Microsoft.DotNet.UpgradeAssistant.Steps.ProjectFormat
     public class TryConvertTool : ITryConvertTool
     {
         private const string DotNetCli = "dotnet";
-        private const string TryConvertArgumentsFormat = "{0} --no-backup -m \"{1}\" --force-web-conversion --keep-current-tfms -p \"{2}\"";
+        private const string TryConvertArgumentsFormat = "\"{0}\" --no-backup -m \"{1}\" --force-web-conversion --keep-current-tfms -p \"{2}\"";
 
         private static readonly string[] ErrorMessages = new[]
         {