Don't add port if port == 80 (default port). fixes #3993

git-svn-id: https://develop.svn.wordpress.org/trunk@5424 602fd350-edb4-49c9-b593-d223f7449a82

wp-includes/class-snoopy.php

@@ -796,7 +796,7 @@ class Snoopy
 			$headers .= "User-Agent: ".$this->agent."\r\n";
 		if(!empty($this->host) && !isset($this->rawheaders['Host'])) {
 			$headers .= "Host: ".$this->host;
-			if(!empty($this->port))
+			if(!empty($this->port) && $this->port != 80)
 				$headers .= ":".$this->port;
 			$headers .= "\r\n";
 		}