[Plugin: WordPress Related Posts] Notice in line 72

There is a notice appearing on line 72 because of an out of range index:
for ($i = 1; $i <= $tagcount; $i++) {

The problem is the equal sign. Instead, it seems like it should be:
for ($i = 1; $i < $tagcount; $i++) {

http://wordpress.org/extend/plugins/wordpress-23-related-posts-plugin/