patch 8.2.3342: test for :let errors fails
Problem: Test for :let errors fails.
Solution: Adjust the test and how to avoid a second error message.
diff --git a/src/testdir/test_let.vim b/src/testdir/test_let.vim
index d001d05..5f8879b 100644
--- a/src/testdir/test_let.vim
+++ b/src/testdir/test_let.vim
@@ -279,7 +279,7 @@
let l = [1, 2, 3]
call assert_fails('let l[:] = 5', 'E709:')
- call assert_fails('let x:lnum=5', ['E121:', 'E488:'])
+ call assert_fails('let x:lnum=5', ['E121:', 'E121:'])
call assert_fails('let v:=5', 'E461:')
call assert_fails('let [a]', 'E474:')
call assert_fails('let [a, b] = [', 'E697:')