JDK 1.2 compatibility

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@499323 13f79535-47bb-0310-9956-ffa450edef68

src/main/org/apache/tools/ant/taskdefs/Concat.java

@@ -479,7 +479,7 @@ public class Concat extends Task {
         InputStream in = null;
         try {
             try {
-                out = new FileOutputStream(destinationFile, append);
+                out = new FileOutputStream(destinationFile.getPath(), append); // JDK 1.2 compatibility
             } catch (Exception t) {
                 throw new BuildException("Unable to open "
                     + destinationFile + " for writing", t);