diff --git a/wp-blog-header.php b/wp-blog-header.php
index ddb4c646c4..c9e0e2907d 100644
--- a/wp-blog-header.php
+++ b/wp-blog-header.php
@@ -1,21 +1,21 @@
 <?php
 
-if (!file_exists(dirname(__FILE__).'/' . 'wp-config.php'))
+if ( !file_exists( dirname(__FILE__) . '/wp-config.php') )
     die("There doesn't seem to be a <code>wp-config.php</code> file. I need this before we can get started. Need more help? <a href='http://wordpress.org/docs/faq/#wp-config'>We got it</a>. You can <a href='wp-admin/setup-config.php'>create a <code>wp-config.php</code> file through a web interface</a>, but this doesn't work for all server setups. The safest way is to manually create the file.");
 
-require_once(dirname(__FILE__).'/' . '/wp-config.php');
+require_once( dirname(__FILE__) . '/wp-config.php');
 
-require_once(dirname(__FILE__).'/' . 'wp-includes/wp-l10n.php');
+require_once( dirname(__FILE__) . '/wp-includes/wp-l10n.php');
 
 // Process PATH_INFO, if set.
 $path_info = array();
-if (! empty($_SERVER['PATH_INFO'])) {
+if ( !empty( $_SERVER['PATH_INFO'] ) ) {
     // Fetch the rewrite rules.
     $rewrite = rewrite_rules('matches');
 
     $pathinfo = $_SERVER['PATH_INFO'];
     // Trim leading '/'.
-    $pathinfo = preg_replace("!^/!", '', $pathinfo);
+    $pathinfo = preg_replace('!^/!', '', $pathinfo);
 
     if (! empty($rewrite)) {
         // Get the name of the file requesting path info.
@@ -52,46 +52,39 @@ if (! empty($_SERVER['PATH_INFO'])) {
 
 $wpvarstoreset = array('m','p','posts','w', 'cat','withcomments','s','search','exact', 'sentence','poststart','postend','preview','debug', 'calendar','page','paged','more','tb', 'pb','author','order','orderby', 'year', 'monthnum', 'day', 'hour', 'minute', 'second', 'name', 'category_name', 'feed', 'author_name');
 
-    for ($i=0; $i<count($wpvarstoreset); $i += 1) {
-        $wpvar = $wpvarstoreset[$i];
-        if (!isset($$wpvar)) {
-            if (empty($_POST[$wpvar])) {
-                if (empty($_GET[$wpvar]) && empty($path_info[$wpvar])) {
-                    $$wpvar = '';
-                } elseif (!empty($_GET[$wpvar])) {
-                    $$wpvar = $_GET[$wpvar];
-                } else {
-                    $$wpvar = $path_info[$wpvar];
-                }
-            } else {
-                $$wpvar = $_POST[$wpvar];
-            }
-        }
-    }
-
-if ($feed != '') {
-    $doing_rss = 1;
+for ($i=0; $i<count($wpvarstoreset); $i += 1) {
+	$wpvar = $wpvarstoreset[$i];
+	if (!isset($$wpvar)) {
+		if (empty($_POST[$wpvar])) {
+			if (empty($_GET[$wpvar]) && empty($path_info[$wpvar])) {
+				$$wpvar = '';
+			} elseif (!empty($_GET[$wpvar])) {
+				$$wpvar = $_GET[$wpvar];
+			} else {
+				$$wpvar = $path_info[$wpvar];
+			}
+		} else {
+			$$wpvar = $_POST[$wpvar];
+		}
+	}
 }
 
-if ($tb == 1) {
-    $doing_trackback = 1;
+if ('' != $feed) {
+    $doing_rss = true;
+}
+
+if (1 == $tb) {
+    $doing_trackback = true;
 }
 
 // Sending HTTP headers
 
-if (!isset($doing_rss) || !$doing_rss) {
-	// It is presumptious to think that WP is the only thing that might change on the page.
-	@header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");                 // Date in the past
-	@header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT"); // always modified
-	@header("Cache-Control: no-store, no-cache, must-revalidate");     // HTTP/1.1
-	@header("Cache-Control: post-check=0, pre-check=0", false);
-	@header("Pragma: no-cache");                                     // HTTP/1.0
+if ( !isset($doing_rss) || !$doing_rss ) {
 	@header ('X-Pingback: '. get_settings('siteurl') . '/xmlrpc.php');
 } else {
-
 	// We're showing a feed, so WP is indeed the only thing that last changed
 	$wp_last_modified = mysql2date('D, d M Y H:i:s', get_lastpostmodified('GMT'), 0).' GMT';
-	$wp_etag = '"'.md5($wp_last_modified).'"';
+	$wp_etag = '"' . md5($wp_last_modified) . '"';
 	@header('Last-Modified: '.$wp_last_modified);
 	@header('ETag: '.$wp_etag);
 	@header ('X-Pingback: ' . get_settings('siteurl') . '/xmlrpc.php');
@@ -117,20 +110,20 @@ if (!isset($doing_rss) || !$doing_rss) {
 		    }
 		}
 	}
-
 }
 
 // Getting settings from DB
-if (isset($doing_rss) && $doing_rss == 1)
-    $posts_per_page=get_settings('posts_per_rss');
-if (!isset($posts_per_page) || $posts_per_page == 0)
+if ( isset($doing_rss) && $doing_rss == 1 )
+    $posts_per_page = get_settings('posts_per_rss');
+if ( !isset($posts_per_page) || $posts_per_page == 0 )
     $posts_per_page = get_settings('posts_per_page');
-if (!isset($what_to_show))
+if ( !isset($what_to_show) )
     $what_to_show = get_settings('what_to_show');
-if (isset($showposts) && $showposts) {
-    $showposts = (int)$showposts;
+if ( isset($showposts) && $showposts ) {
+    $showposts = (int) $showposts;
     $posts_per_page = $showposts;
 }
+
 $archive_mode = get_settings('archive_mode');
 $use_gzipcompression = get_settings('gzipcompression');
 
@@ -139,46 +132,44 @@ $more_wpvars = array('posts_per_page', 'what_to_show', 'showposts');
 // Construct the query string.
 $query_string = '';
 foreach (array_merge($wpvarstoreset, $more_wpvars) as $wpvar) {
-    if ($$wpvar != '') {
-        $query_string .= (strlen($query_string) < 1) ? '' : '&';
-        $query_string .= $wpvar . '=' . rawurlencode($$wpvar);
-    }
+	if ($$wpvar != '') {
+		$query_string .= (strlen($query_string) < 1) ? '' : '&';
+		$query_string .= $wpvar . '=' . rawurlencode($$wpvar);
+	}
 }
 
 $query_string = apply_filters('query_string', $query_string);
 
 $wp_query_state->parse_query($query_string);
 
-// Update some caches.
 update_category_cache();
 
 // Call query posts to do the work.
 $posts = query_posts($query_string);
 
 if (1 == count($posts)) {
-    if ($p || $name) {
-        $more = 1;
-        $single = 1;
-    }
-    if ($s && empty($paged)) { // If they were doing a search and got one result
-        if (!strstr($_SERVER['PHP_SELF'], 'wp-admin')) // And not in admin section
-            header('Location: ' . get_permalink($posts[0]->ID));
-    }
+	if ($p || $name) {
+		$more = 1;
+		$single = 1;
+	}
+	if ( $s && empty($paged) && !strstr($_SERVER['PHP_SELF'], 'wp-admin/')) { // If they were doing a search and got one result
+		header('Location: ' . get_permalink($posts[0]->ID));
+	}
 }
 
 if ($pagenow != 'wp-feed.php' && $feed != '') {
-    require(dirname(__FILE__) . '/wp-feed.php');
-    exit;
+	require(dirname(__FILE__) . '/wp-feed.php');
+	exit;
 }
 
 if ($pagenow != 'wp-trackback.php' && $tb == 1) {
-    require(dirname(__FILE__) . '/wp-trackback.php');
-    exit;
+	require(dirname(__FILE__) . '/wp-trackback.php');
+	exit;
 }
 
 if ($pagenow != 'post.php' && $pagenow != 'edit.php') {
-    if ( get_settings('gzipcompression') ) 
-        gzip_compression();
+	if ( get_settings('gzipcompression') ) 
+		gzip_compression();
 }
 
 ?>
\ No newline at end of file