Wendy's Shares Rise on Baja Fresh Actions  LOS ANGELES (Reuters) - Wendy's International Inc. &lt;A HREF="http://www.investor.reuters.com/FullQuote.aspx?ticker=WEN.N target=/stocks/quickinfo/fullquote"&gt;WEN.N&lt;/A&gt;  shares rose 7 percent on Wednesday as investors welcomed news  the company will write down the value of some of its struggling  Baja Fresh restaurants and close several of them.