patch 9.0.0239: build failure without the +wildmenu feature

Problem:    Build failure without the +wildmenu feature.
Solution:   Move parenthesis.
diff --git a/src/version.c b/src/version.c
index 289d0e6..fe100c8 100644
--- a/src/version.c
+++ b/src/version.c
@@ -732,6 +732,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    239,
+/**/
     238,
 /**/
     237,