fix bench rebase tool to cope with wider range of bots.

experimental/benchtools/rebase.py

Index: experimental/benchtools/rebase.py
diff --git a/experimental/benchtools/rebase.py b/experimental/benchtools/rebase.py
index 5eee51630dcc1f7b92ebde8abcffd94e067a9337..3f89791eb461eca0d5b417be01b5a894467c7041 100755
--- a/experimental/benchtools/rebase.py
+++ b/experimental/benchtools/rebase.py
@@ -84,7 +84,7 @@ def download_gs_files(p, h, gs_dir):
       os.remove(os.path.join(gs_dir, p, f))
     else:
       files += 1
-  if files == 4:
+  if files:
     return True
   return False
 
@@ -220,7 +220,7 @@ def main():
     hash_to_use = ''
     for h in reversed(hashes):
       li = get_gs_filelist(p, h)
-      if len(li) != 4:  # no or partial data
+      if not len(li):  # no data
         continue
       if download_gs_files(p, h, gs_dir):
         print 'Copied %s/%s' % (p, h)