patch 8.2.4011: test fails because of changed error number

Problem:    Test fails because of changed error number.
Solution:   Restore old duplicate error message.
diff --git a/src/version.c b/src/version.c
index 8a508d3..4e00f7b 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    4011,
+/**/
     4010,
 /**/
     4009,