patch 8.0.0219: ubsan reports errors for overflow

Problem:    Ubsan reports errors for integer overflow.
Solution:   Define macros for minimum and maximum values.  Select an
            expression based on the value. (Mike Williams)
diff --git a/src/version.c b/src/version.c
index 2860968..90f056b 100644
--- a/src/version.c
+++ b/src/version.c
@@ -765,6 +765,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    219,
+/**/
     218,
 /**/
     217,