Index: formatting.php
===================================================================
--- formatting.php	(revision 6430)
+++ formatting.php	(working copy)
@@ -80,7 +80,7 @@
 	$pee = preg_replace('!(</?' . $allblocks . '[^>]*>)\s*</p>!', "$1", $pee);
 	if ($br) {
 		$pee = preg_replace('/<(script|style).*?<\/\\1>/se', 'str_replace("\n", "<WPPreserveNewline />", "\\0")', $pee);
-		$pee = preg_replace('|(?<!<br />)\s*\n|', "<br />\n", $pee); // optionally make line breaks
+		$pee = preg_replace('|(?<!<br />)\s+\n|', "<br />\n", $pee); // optionally make line breaks
 		$pee = str_replace('<WPPreserveNewline />', "\n", $pee);
 	}
 	$pee = preg_replace('!(</?' . $allblocks . '[^>]*>)\s*<br />!', "$1", $pee);