patch 8.2.4606: test fails because of changed error message

Problem:    Test fails because of changed error message.
Solution:   Update the expected error message
diff --git a/src/testdir/test_vim9_import.vim b/src/testdir/test_vim9_import.vim
index c9ae612..2ce825f 100644
--- a/src/testdir/test_vim9_import.vim
+++ b/src/testdir/test_vim9_import.vim
@@ -2156,7 +2156,7 @@
      export var Func = 'asdf'
   END
   writefile(lines, 'Xdir/autoload/dup3func.vim')
-  assert_fails('source Xdir/autoload/dup3func.vim', 'E1041: Redefining script item Func')
+  assert_fails('source Xdir/autoload/dup3func.vim', 'E1041: Redefining script item: "Func"')
 
   lines =<< trim END
      vim9script
@@ -2189,7 +2189,7 @@
      var Func = 'asdf'
   END
   writefile(lines, 'Xdir/autoload/dup6func.vim')
-  assert_fails('source Xdir/autoload/dup6func.vim', 'E1041: Redefining script item Func')
+  assert_fails('source Xdir/autoload/dup6func.vim', 'E1041: Redefining script item: "Func"')
 
   delete('Xdir', 'rf')
 enddef