I'am using Zend Framework to create web sites. In my layout I write
<?php
echo $this->headTitle('Zend Framework');
$this->headMeta()->appendName('keywords', 'framework php productivity');
$this->headMeta()->appendName('description', 'some description');
echo $this->headMeta();
?>
In source code meta-title and meta-keywords become in the same line.
<title>Zend Framework</title> <meta name="keywords" content="framework php productivity" />
<meta name="description" content="some description" />
Is it realy matters on Search Optimisation or not?
It does not. You can leave it alone.
But if you want to have a new line character, you can use:
$this->headMeta()->setPostfix("\n")