patch 8.0.1731: characters deleted on completion

Problem:    Characters deleted on completion. (Adrià Farrés)
Solution:   Also check the last item for the ORIGINAL_TEXT flag. (Christian
            Brabandt, closes #1645)
diff --git a/src/version.c b/src/version.c
index 8d5c73a..c3add51 100644
--- a/src/version.c
+++ b/src/version.c
@@ -763,6 +763,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1731,
+/**/
     1730,
 /**/
     1729,