patch 8.1.1098: quickfix code duplication

Problem:    Quickfix code duplication.
Solution:   Refactor the qf_init_ext() function. (Yegappan Lakshmanan,
            closes #4193)
diff --git a/src/version.c b/src/version.c
index 846b816..c82a153 100644
--- a/src/version.c
+++ b/src/version.c
@@ -772,6 +772,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1098,
+/**/
     1097,
 /**/
     1096,