cmd-save: fix a potential divide by zero error.

In the progress calculation stuff.

diff --git a/cmd-save.py b/cmd-save.py
index a179f7901c3e1852bbbf37c45d3ad4f86478786c..8a06593b70ffc8b94fee6e46be11c0e687ac33c4 100755 (executable)
--- a/cmd-save.py
+++ b/cmd-save.py
@@ -65,7 +65,7 @@ lastremain = None
 def progress_report(n):
     global count, lastremain
     count += n
-    pct = count*100.0/total
+    pct = total and (count*100.0/total) or 0
     now = time.time()
     elapsed = now - tstart
     kps = elapsed and int(count/1024./elapsed)