NIT refactor using directives usage in publish setup-generated code: get rid of unnecessary commas and double quote escapes

Author: Gedochao

modules/cli/src/main/scala/scala/cli/commands/publish/PublishSetup.scala

@@ -263,13 +263,13 @@ object PublishSetup extends ScalaCommand[PublishSetupOptions] {
         def extraDirectivesLines(extraDirectives: Seq[(String, String)]) =
           extraDirectives.map {
             case (k, v) =>
-              s"""//> using $k "$v"""" + nl
+              s"""//> using $k $v""" + nl
           }.mkString
 
         val extraLines = missingFieldsWithDefaultsAndValues.map {
           case (_, default, None) => extraDirectivesLines(default.extraDirectives)
           case (check, default, Some(value)) =>
-            s"""//> using ${check.directivePath} "$value"""" + nl +
+            s"""//> using ${check.directivePath} $value""" + nl +
               extraDirectivesLines(default.extraDirectives)
         }