patch 9.0.0601: too much indent

Problem:    Too much indent.
Solution:   Return out early from a funtion. (Yegappan Lakshmanan,
            close #11238)
diff --git a/src/version.c b/src/version.c
index d0e14a2..0952526 100644
--- a/src/version.c
+++ b/src/version.c
@@ -700,6 +700,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    601,
+/**/
     600,
 /**/
     599,