PackOutputStream: Add comment for intentional use of non-short-circuit logic

To avoid that people try to "fix" it.

Change-Id: Ib4b35e357e4c068a17243ebd2d57b058c54d5834
Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>

org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/pack/PackOutputStream.java

@@ -183,7 +183,7 @@ public final class PackOutputStream extends OutputStream {
 	public final void writeHeader(ObjectToPack otp, long rawLength)
 			throws IOException {
 		ObjectToPack b = otp.getDeltaBase();
-		if (b != null && (b.isWritten() & ofsDelta)) {
+		if (b != null && (b.isWritten() & ofsDelta)) { // Non-short-circuit logic is intentional
 			int n = objectHeader(rawLength, OBJ_OFS_DELTA, headerBuffer);
 			n = ofsDelta(count - b.getOffset(), headerBuffer, n);
 			write(headerBuffer, 0, n);