Henman Sails at the Swiss Indoors &lt;p&gt;&lt;/p&gt;&lt;p&gt; By Mark Ledsom&lt;/p&gt;&lt;p&gt; BASEL (Reuters) - Britain's world number four Tim Henmanwon his opening match at the Swiss Indoors tennis tournamentwith little difficulty on Wednesday, beating Frenchman AntonyDupuis 6-3, 6-4.&lt;/p&gt;