patch for Windows: do not use the thread lock feature from previous commit if used on Windows

git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@7596 6c8d7289-2bf4-0310-a012-ef5d649a1542

source/net/yacy/kelondro/logging/ThreadDump.java

@@ -100,6 +100,7 @@ public class ThreadDump extends HashMap<ThreadDump.Thread, List<String>> impleme
         
         // try to get the thread dump from yacy.log which is available when YaCy is started with
         // startYACY.sh -l
+        if (!OS.canExecUnix) return;
         
         File logFile = new File("yacy.log");
         if (!logFile.exists()) return;