CLI: install language

https://github.com/FreshRSS/FreshRSS/issues/1445#issuecomment-283908468

cli/README.md

@@ -32,10 +32,11 @@ Options in parenthesis are optional.
 ```sh
 cd /usr/share/FreshRSS
 
-./cli/do-install.php --default_user admin ( --auth_type form --environment production --base_url https://rss.example.net/ --title FreshRSS --allow_anonymous --api_enabled --db-type mysql --db-host localhost:3306 --db-user freshrss --db-password dbPassword123 --db-base freshrss --db-prefix freshrss )
+./cli/do-install.php --default_user admin ( --auth_type form --environment production --base_url https://rss.example.net/ --language en --title FreshRSS --allow_anonymous --api_enabled --db-type mysql --db-host localhost:3306 --db-user freshrss --db-password dbPassword123 --db-base freshrss --db-prefix freshrss )
 # --auth_type can be: 'form' (default), 'http_auth' (using the Web server access control), 'none' (dangerous)
 # --db-type can be: 'sqlite' (default), 'mysql' (MySQL or MariaDB), 'pgsql' (PostgreSQL)
 # --environment can be: 'production' (default), 'development' (for additional log messages)
+# --language can be: 'en' (default), 'fr', or one of the [supported languages](../app/i18n/)
 # --db-prefix is an optional prefix in front of the names of the tables. We suggest using 'freshrss_'
 # This command does not create the default user. Do that with ./cli/create-user.php
 

cli/reconfigure.php

@@ -5,6 +5,7 @@ require('_cli.php');
 $params = array(
 		'environment:',
 		'base_url:',
+		'language:',
 		'title:',
 		'default_user:',
 		'allow_anonymous',