bug on a bezier draw attempt

[boriel]

ZX Basic compiler allows multiline IFs. So every IF must be closed with END IF.
See help: <!-- m --><a class="postlink" href="http://www.boriel.com/wiki/en/index.php/ZX_BASIC:IF">http://www.boriel.com/wiki/en/index.php/ZX_BASIC:IF</a><!-- m -->