patch 8.2.3967: error messages are spread out

Problem:    Error messages are spread out.
Solution:   Move more errors to errors.h.
diff --git a/src/vim9expr.c b/src/vim9expr.c
index 1e87b8e..d2e84a8 100644
--- a/src/vim9expr.c
+++ b/src/vim9expr.c
@@ -855,7 +855,7 @@
     {
 	if (may_get_next_line(whitep, &p, cctx) == FAIL)
 	{
-	    semsg(_(e_list_end), *arg);
+	    semsg(_(e_missing_end_of_list_rsb_str), *arg);
 	    return FAIL;
 	}
 	if (*p == ',')