patch 8.1.0930: typo in Makefile

Problem:    Typo in Makefile.
Solution:   Change ABORT_CLFAGS to ABORT_CFLAGS. (Kuang-che Wu, closes #3977)
diff --git a/src/version.c b/src/version.c
index 8a7ab7f..e2b6f7a 100644
--- a/src/version.c
+++ b/src/version.c
@@ -784,6 +784,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    930,
+/**/
     929,
 /**/
     928,