[Console] Added a missing PHPDoc and replaced `program` by `application`

src/Symfony/Component/Console/Application.php

@@ -85,7 +85,7 @@ class Application
             new InputOption('--help',           '-h', InputOption::VALUE_NONE, 'Display this help message.'),
             new InputOption('--quiet',          '-q', InputOption::VALUE_NONE, 'Do not output any message.'),
             new InputOption('--verbose',        '-v', InputOption::VALUE_NONE, 'Increase verbosity of messages.'),
-            new InputOption('--version',        '-V', InputOption::VALUE_NONE, 'Display this program version.'),
+            new InputOption('--version',        '-V', InputOption::VALUE_NONE, 'Display this application version.'),
             new InputOption('--ansi',           '',   InputOption::VALUE_NONE, 'Force ANSI output.'),
             new InputOption('--no-ansi',        '',   InputOption::VALUE_NONE, 'Disable ANSI output.'),
             new InputOption('--no-interaction', '-n', InputOption::VALUE_NONE, 'Do not ask any interactive question.'),
@@ -836,6 +836,14 @@ class Application
         return sprintf('%s, %s%s', $abbrevs[0], $abbrevs[1], count($abbrevs) > 2 ? sprintf(' and %d more', count($abbrevs) - 2) : '');
     }
 
+    /**
+     * Returns the namespace part of the command name.
+     *
+     * @param string $name  The full name of the command
+     * @param string $limit The maximum number of parts of the namespace
+     *
+     * @return string The namespace of the command
+     */
     private function extractNamespace($name, $limit = null)
     {
         $parts = explode(':', $name);