Using - for output in unpack conflicts with progress output about android-backup-extractor HOT 5 CLOSED

diff --git a/src/org/nick/abe/AndroidBackup.java b/src/org/nick/abe/AndroidBackup.java
index dc333ee..651f606 100644
--- a/src/org/nick/abe/AndroidBackup.java
+++ b/src/org/nick/abe/AndroidBackup.java
@@ -212,7 +212,7 @@ public class AndroidBackup {
                     bytesRead = inf == null ? totalRead : inf.getBytesRead();
                     currentPercent = Math.round(bytesRead / fileSize * 100);
                     if (currentPercent != percentDone) {
-                        System.out.print(String.format("%.0f%% ", currentPercent));
+                        System.err.print(String.format("%.0f%% ", currentPercent));
                         percentDone = currentPercent;
                     }
                 }

abe unpack backup-2017-03-01.ab - 2> /dev/null | tar -tv