fix(setup): don’t rewrite no-start option when no-prompt is passed

Now it is possible to pass both --no-prompt and --no-start options
Before this fix --no-start was ignored if --no-prompt is present

lib/commands/setup.js

@@ -174,7 +174,7 @@ class SetupCommand extends Command {
 
             return this.ui.listr(tasks, {setup: true}).then(() => {
                 // If we are not allowed to prompt, set the default value, which should be true
-                if (!argv.prompt) {
+                if (!argv.prompt && typeof argv.start === 'undefined') {
                     argv.start = true;
                 }