patch 8.1.0919: compiler warnings

Problem:    Compiler warnings.
Solution:   Add type casts. (Mike Williams)
diff --git a/src/version.c b/src/version.c
index 73840c2..30b78e5 100644
--- a/src/version.c
+++ b/src/version.c
@@ -784,6 +784,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    919,
+/**/
     918,
 /**/
     917,