document difference in behaviour w/ regard to tree vs. commit and
correct author information.
Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
When <base> is specified it is added as a leading path as the files in the
generated tar archive.
+git-tar-tree behaves differently when given a tree ID versus when given
+a commit ID or tag ID. In the first case the current time is used as
+modification time of each file in the archive. In the latter case the
+commit time as recorded in the referenced commit object is used instead.
+Additionally the commit ID is stored in a global extended pax header.
+It can be extracted using git-get-tar-commit-id.
+
Author
------
-Written by Linus Torvalds <torvalds@osdl.org>
+Written by Rene Scharfe.
Documentation
--------------