PackWriter: Refactor object writing loop

This simple refactoring makes it easier to pre-process each of the
object lists before its handed into the actual write routine.

Change-Id: Iea95e5ecbc7374f6bcbb43d1c75285f4f564d09d
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>

org.eclipse.jgit/src/org/eclipse/jgit/storage/pack/PackWriter.java

@@ -977,16 +977,19 @@ public class PackWriter {
 	}
 
 	private void writeObjects(PackOutputStream out) throws IOException {
-		if (reuseSupport != null) {
 		for (List<ObjectToPack> list : objectsLists)
+				writeObjects(out, list);
+	}
+
+	private void writeObjects(PackOutputStream out, List<ObjectToPack> list)
+			throws IOException {
+		if (reuseSupport != null) {
 			reuseSupport.writeObjects(out, list);
 		} else {
-			for (List<ObjectToPack> list : objectsLists) {
 			for (ObjectToPack otp : list)
 				out.writeObject(otp);
 		}
 	}
-	}
 
 	void writeObject(PackOutputStream out, ObjectToPack otp) throws IOException {
 		if (otp.isWritten())