patch 8.1.1883: options test fails

Problem:    Options test fails.
Solution:   Add entry for 'completepopup'.
diff --git a/src/version.c b/src/version.c
index 6a70688..e39567f 100644
--- a/src/version.c
+++ b/src/version.c
@@ -770,6 +770,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1883,
+/**/
     1882,
 /**/
     1881,