Adjust highlight test.

Author: Ilia Alshanetsky

tests/strings/004.phpt

@@ -15,8 +15,8 @@ echo "\n[$var]\n";
 ?>
 --EXPECT--
 <code><span style="color: #000000">
-&lt;br /&gt;<span style="color: #0000BB">&lt;?php </span><span style="color: #007700">echo </span><span style="color: #DD0000">"foo"</span><span style="color: #007700">; </span><span style="color: #0000BB">?&gt;</span>&lt;br /&gt;</span>
+&lt;br&nbsp;/&gt;<span style="color: #0000BB">&lt;?php&nbsp;</span><span style="color: #007700">echo&nbsp;</span><span style="color: #DD0000">"foo"</span><span style="color: #007700">;&nbsp;</span><span style="color: #0000BB">?&gt;</span>&lt;br&nbsp;/&gt;</span>
 </code>
 [<code><span style="color: #000000">
-&lt;br /&gt;<span style="color: #0000BB">&lt;?php </span><span style="color: #007700">echo </span><span style="color: #DD0000">"bar"</span><span style="color: #007700">; </span><span style="color: #0000BB">?&gt;</span>&lt;br /&gt;</span>
+&lt;br&nbsp;/&gt;<span style="color: #0000BB">&lt;?php&nbsp;</span><span style="color: #007700">echo&nbsp;</span><span style="color: #DD0000">"bar"</span><span style="color: #007700">;&nbsp;</span><span style="color: #0000BB">?&gt;</span>&lt;br&nbsp;/&gt;</span>
 </code>]