syntax description accurate

test/post_line.sh

@@ -3,7 +3,7 @@
 help() {
     echo "Syntaxe"
     echo "‾‾‾‾‾‾‾"
-    echo "sh $0 [ adresse ] [ username ] [ password ]\n"
+    echo "sh $0 [ adresse ] [ tablename ] [ data ]\n"
 }
 
 if [ -z "$1" ]