comment moderation results in errors

[mdawaffe]

Including a word from the comment moderation spam word list in a comment yields several errors, the first of which is:

Warning: gethostbyaddr(): Address is not in a.b.c.d form in /path/to/wp-includes/comment-functions.php on line 737

Follwed by lots of header errors in wp-comments-post.php

[matt]

Unable to recreate, description vague.