patch 8.1.0070: missing part of the changes for prompt_setinterrupt()

Problem:    Missing part of the changes for prompt_setinterrupt().
Solution:   Add the missing changes.
diff --git a/src/version.c b/src/version.c
index 1f462b3..6a294f7 100644
--- a/src/version.c
+++ b/src/version.c
@@ -762,6 +762,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    70,
+/**/
     69,
 /**/
     68,