patch 8.0.0945: 64-bit compiler warnings

Problem:    64-bit compiler warnings.
Solution:   Use "size_t" instead of "int". (Mike Williams)
diff --git a/src/version.c b/src/version.c
index 882e3da..d616e25 100644
--- a/src/version.c
+++ b/src/version.c
@@ -770,6 +770,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    945,
+/**/
     944,
 /**/
     943,