Use the coder module to save embarrassment!
On my last blog post, I threw out a one-line patch for a usability enhancement to the Bio module. Here's the line in question:
<?php
drupal_set_message(t('You can edit Bio settings at ') . l('admin/user/bio','admin/user/bio'));
?>How many errors are there in that line? Many more than I expected, as dww very patiently pointed out to me: