MAGETWO-38150: Data Backup

- Changes based on message review comments.

Author: safwkhan

setup/src/Magento/Setup/Console/Command/BackupCommand.php

@@ -111,7 +111,7 @@ protected function execute(InputInterface $input, OutputInterface $output)
     {
         if (!$this->deploymentConfig->isAvailable()
             && ($input->getOption(self::INPUT_KEY_MEDIA) || $input->getOption(self::INPUT_KEY_DB))) {
-            $output->writeln("<info>No information is available: the application is not installed.</info>");
+            $output->writeln("<info>No information is available: the Magento application is not installed.</info>");
             return;
         }
         try {
@@ -134,7 +134,7 @@ protected function execute(InputInterface $input, OutputInterface $output)
             }
             if (!$inputOptionProvided) {
                 throw new \InvalidArgumentException(
-                    'No option is provided for the command to take backup.'
+                    'Not enough information provided to take backup.'
                 );
             }
         } catch (\Exception $e) {

setup/src/Magento/Setup/Test/Unit/Console/Command/BackupCommandTest.php

@@ -111,7 +111,7 @@ public function testExecuteNotInstalled()
             ->will($this->returnValue(false));
         $this->tester->execute(['--db' => true]);
         $this->assertStringMatchesFormat(
-            'No information is available: the application is not installed.%w',
+            'No information is available: the Magento application is not installed.%w',
             $this->tester->getDisplay()
         );
     }
@@ -123,7 +123,7 @@ public function testExecuteNoOptions()
             ->will($this->returnValue(false));
         $this->tester->execute([]);
         $expected = 'Enabling maintenance mode' . PHP_EOL
-            . 'No option is provided for the command to take backup.'  . PHP_EOL
+            . 'Not enough information provided to take backup.'  . PHP_EOL
             . 'Disabling maintenance mode';
         $this->assertStringMatchesFormat($expected, $this->tester->getDisplay());
     }