Code cleanup patch for aggregator module

I agree that in most cases we want to put comments on a separate line above the code in question. However, for the case of adding implementation details (which you would usually find in a footnote) it makes more sense to put them on the same line after the code.

In this specific case I think that

<?php
$timestamp = strtotime($date); // As of PHP 5.1.0, strtotime returns FALSE on failure instead of -1.

if ($timestamp <= 0) {
  $timestamp = aggregator_parse_w3cdtf($date); // Aggregator_parse_w3cdtf() returns FALSE on failure.
?>

makes more sense than

<?php
// As of PHP 5.1.0, strtotime returns FALSE on failure instead of -1.
$timestamp = strtotime($date);

if ($timestamp <= 0) {
  // Aggregator_parse_w3cdtf() returns FALSE on failure.
  $timestamp = aggregator_parse_w3cdtf($date);
?>

The attached patch simply reverts the changes affecting these two comments.

Otherwise this looks good. Great job Senpai!

Good stuff.

Committed to CVS HEAD. Thanks.