- Added a note about new lines

git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@45741 c90b9560-bf6c-de11-be94-00142212c4b1

functions/mail.xml

@@ -123,6 +123,12 @@ mail($recipient, $subject, $message, $headers);
       </programlisting>
      </example>
     </para>
+    <note>
+     <para>
+       Make sure you have no new-line (or other whitespace) after your to or
+       subject parameters, as this may cause strange results.
+     </para>
+    </note>
    </refsect1>
   </refentry>