Issue #1531: Read fileobj from the current offset, do not seek to
the start.

(will backport to 2.5)
diff --git a/Misc/NEWS b/Misc/NEWS
index 2023143..c32e3f9 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -304,6 +304,9 @@
 Library
 -------
 
+- Issue #1531: tarfile.py: Read fileobj from the current offset, do not
+  seek to the start.
+
 - Issue #1534: Added a dictionary sys.float_info with information about the
   internal floating point type to the sys module.