patch 8.1.0836: user completion test can fail on MS-Windows

Problem:    User completion test can fail on MS-Windows.
Solution:   Allow for other names befor "Administrator".
diff --git a/src/version.c b/src/version.c
index 31bf378..dac3c62 100644
--- a/src/version.c
+++ b/src/version.c
@@ -784,6 +784,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    836,
+/**/
     835,
 /**/
     834,