Fix undefined macro error.

data/test/scenarios/manual_tests/test_max_menu_items.cfg

@@ -1,6 +1,37 @@
 #textdomain wesnoth-test
 
-{GENERIC_UNIT_TEST "test_max_menu_items" (
+[test]
+    name = _ "Unit Test test_max_menu_items"
+    map_file=test/maps/generic_unit_test.map
+    turns = -1
+    id = test_max_menu_items
+    is_unit_test = yes
+
+    {DAWN}
+
+    [side]
+        side=1
+        controller=human
+        recruit=
+        gold=100
+        [leader]
+            name = _ "Alice"
+            type = Elvish Archer
+            id=alice
+        [/leader]
+    [/side]
+    [side]
+        side=2
+        controller=human
+        recruit=
+        gold=100
+        [leader]
+            name = _ "Bob"
+            type = Orcish Grunt
+            id=bob
+        [/leader]
+    [/side]
+
     [event]
         name=side 1 turn
         first_time_only=no
@@ -119,4 +150,4 @@
             description=_"foo21"
         [/set_menu_item]
     [/event]
-)}
+[/test]