sequencer (rebase -i): suggest --edit-todo upon unknown command

This is the same behavior as known from `git rebase -i`. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Johannes Schindelin committed Jan 2, 2017 at 16:35 UTC 27fdbb96aae789105dadbddbfa9bccce8f88d3c8
1 file changed +5 -1
sequencer.c
+5 -1
@@ -1314,8 +1314,12 @@ static int read_populate_todo(struct todo_list *todo_list,
1314 close(fd);
1315
1316 res = parse_insn_buffer(todo_list->buf.buf, todo_list);
1317 - if (res)
1317 + if (res) {
1318 + if (is_rebase_i(opts))
1319 + return error(_("please fix this using "
1320 + "'git rebase --edit-todo'."));
1321 return error(_("unusable instruction sheet: '%s'"), todo_file);
1322 + }
1323
1324 if (!todo_list->nr &&
1325 (!is_rebase_i(opts) || !file_exists(rebase_path_done())))