small bug in ftpc: did cot compile in Java 1.5

Please set compiler to Java 1.5-compliance

git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@4570 6c8d7289-2bf4-0310-a012-ef5d649a1542

htroot/Threaddump_p.java

@@ -56,7 +56,6 @@ import de.anomic.yacy.yacyVersion;
 
 import java.util.Map;
 import java.lang.StringBuffer;
-import java.util.Iterator;
 import java.util.Date;
 
 public class Threaddump_p {

source/de/anomic/net/ftpc.java

@@ -1616,7 +1616,7 @@ public class ftpc {
         } catch (final IOException e) {
             // if a connection was opened, it should not be used
             closeConnection();
-            throw new IOException(e);
+            throw new IOException(e.getMessage());
         }
     }