Update DataContext.xml (#4393)

Typo "TextReader" should read "TextWriter"

Author: aodennison

xml/System.Data.Linq/DataContext.xml

@@ -1176,7 +1176,7 @@ Next
       </ReturnValue>
       <Docs>
         <summary>Gets or sets the destination to write the SQL query or command.</summary>
-        <value>The <see cref="T:System.IO.TextReader" /> to use for writing the command.</value>
+        <value>The writer to use for writing the command.</value>
         <remarks>
           <format type="text/markdown"><![CDATA[