AC-11661:: The console command php bin magento config show --scope=store --scope-code=store view code does not work if the configuration for this scope is not exist

Author: glo17720

app/code/Magento/Config/Console/Command/ConfigShowCommand.php

@@ -238,7 +238,7 @@ private function outputResult(OutputInterface $output, $configValue, $configPath
     {
         if (!is_array($configValue)) {
             $value = $this->valueProcessor->process($this->scope, $this->scopeCode, $configValue, $configPath);
-            $output->writeln($this->inputPath === $configPath ? $value : sprintf("%s - %s", $configPath, $value));
+            $output->writeln($this->inputPath === $configPath ? [$value] : sprintf("%s - %s", $configPath, $value));
         } elseif (is_array($configValue)) {
             foreach ($configValue as $name => $value) {
                 $childPath = empty($configPath) ? $name : ($configPath . '/' . $name);