use String variable in IOException construction

git-svn-id: svn+ssh://svn.internal.sanger.ac.uk/repos/svn/pathsoft/artemis/trunk@11416 ee4ac58c-ac51-4696-9907-e4b3aa274f04

uk/ac/sanger/artemis/util/LargeObjectDocument.java

@@ -84,7 +84,7 @@ public class LargeObjectDocument extends Document
     catch (SQLException e)
     {
       e.printStackTrace();
-      throw new IOException( e );
+      throw new IOException( e.getMessage() );
     }
   }