patch 9.1.0872: No test for W23 message

Problem:  No test for W23 message
Solution: Check for W23 message when accessing the clipboard fails
          (after v9.1.0868)

closes: #16076

Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/version.c b/src/version.c
index dbd5fc6..3eb9769 100644
--- a/src/version.c
+++ b/src/version.c
@@ -705,6 +705,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    872,
+/**/
     871,
 /**/
     870,