added file dependency check, switched back to english, smaller fix and improvements

modules/conf_ssh.sh

@@ -25,7 +25,7 @@ conf_ssh()
     prnt I "Installation des fichiers de configuration de SSH..."
     for f in /etc/ssh/ssh{,d}_config; do
         backupdist $f
-        installfile $(basename $f) /etc/ssh/$(basename $f)
+        installfile ssh/$(basename $f) /etc/ssh/$(basename $f)
     done
 
     prnt I "Démarrage du sevice ssh..."
@@ -34,7 +34,7 @@ conf_ssh()
 
 precheck_conf_ssh()
 {
-    : # Nothing to check
+    file_exists ssh/ssh{,d}_config
 }
 
 export -f conf_ssh