patch 8.2.2859: Tcl test fails because of changed error message

Problem:    Tcl test fails because of changed error message.
Solution:   Adjust the expected error message.
diff --git a/src/version.c b/src/version.c
index 018e47d..6a37ad5 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2859,
+/**/
     2858,
 /**/
     2857,