patch 8.2.2811: Vim9: error for missing white space doesn't say where

Problem:    Vim9: error for missing white space doesn't say where it is
            missing
Solution:   Mention the command. (closes #8149)
diff --git a/src/errors.h b/src/errors.h
index 0781ca1..3d12c1d 100644
--- a/src/errors.h
+++ b/src/errors.h
@@ -323,8 +323,8 @@
 	INIT(= N_("E1142: Non-empty string required"));
 EXTERN char e_empty_expression_str[]
 	INIT(= N_("E1143: Empty expression: \"%s\""));
-EXTERN char e_command_not_followed_by_white_space_str[]
-	INIT(= N_("E1144: Command is not followed by white space: %s"));
+EXTERN char e_command_str_not_followed_by_white_space_str[]
+	INIT(= N_("E1144: Command \"%s\" is not followed by white space: %s"));
 EXTERN char e_missing_heredoc_end_marker_str[]
 	INIT(= N_("E1145: Missing heredoc end marker: %s"));
 EXTERN char e_command_not_recognized_str[]