patch 9.0.1043: macro has confusing name and is duplicated

Problem:    Macro has confusing name and is duplicated.
Solution:   Use one macro with an understandable name. (closes #11686)
diff --git a/src/version.c b/src/version.c
index 14b6d28..0acd217 100644
--- a/src/version.c
+++ b/src/version.c
@@ -696,6 +696,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1043,
+/**/
     1042,
 /**/
     1041,