Minor coding style inconsistency in wp-comments-post.php

[JeremyVisser]

In wp-comments-post.php, at the very top, there is a small instance of double quotes being used where single quotes should be used (performance), and spaces used when tabs should be used.

Patch attached is patched against trunk rev 5773.

Environment

• WordPress trunk (2.3)
• WordPress MU 1.2.2

[markjaquith]

(In [5777]) Update wp-comments-post.php to WP coding conventions. props JeremyVisser. fixes #4573

[matt]

Thank you.