Patch to fix comment number in blueprint_comment_wrapper()

The attached patch fixes incorrect counting of comments number and outputting of format_plural() in template.php within function blueprint_comment_wrapper():

Current blueprint-6.x-2.x-dev.tar.gz (2010-03-04):

393  $count = $node->comment_count .' '. format_plural($node->comment_count, 'comment', 'comments');
394  $count = ($count > 0) ? $count : 'No comments';

Fixed:

393  $count = ($node->comment_count > 0) ? format_plural($node->comment_count, '1 comment', '@count comments') : t('No comments available.');