revert: give --continue handling its own function

This makes pick_revisions() a little shorter and easier to read
straight through.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

builtin/revert.c

@@ -1038,6 +1038,21 @@ static int pick_commits(struct commit_list *todo_list, struct replay_opts *opts)
 	return 0;
 }
 
+static int sequencer_continue(struct replay_opts *opts)
+{
+	struct commit_list *todo_list = NULL;
+
+	if (!file_exists(git_path(SEQ_TODO_FILE)))
+		return error(_("No %s in progress"), action_name(opts));
+	read_populate_opts(&opts);
+	read_populate_todo(&todo_list, opts);
+
+	/* Verify that the conflict has been resolved */
+	if (!index_differs_from("HEAD", 0))
+		todo_list = todo_list->next;
+	return pick_commits(todo_list, opts);
+}
+
 static int pick_revisions(struct replay_opts *opts)
 {
 	struct commit_list *todo_list = NULL;
@@ -1056,17 +1071,8 @@ static int pick_revisions(struct replay_opts *opts)
 	}
 	if (opts->subcommand == REPLAY_ROLLBACK)
 		return sequencer_rollback(opts);
-	if (opts->subcommand == REPLAY_CONTINUE) {
-		if (!file_exists(git_path(SEQ_TODO_FILE)))
-			return error(_("No %s in progress"), action_name(opts));
-		read_populate_opts(&opts);
-		read_populate_todo(&todo_list, opts);
-
-		/* Verify that the conflict has been resolved */
-		if (!index_differs_from("HEAD", 0))
-			todo_list = todo_list->next;
-		return pick_commits(todo_list, opts);
-	}
+	if (opts->subcommand == REPLAY_CONTINUE)
+		return sequencer_continue(opts);
 
 	/*
 	 * Start a new cherry-pick/ revert sequence; but