cg-export incompatible with older versions of GNU tar

Minor compatibility issue:

The archives created by the "cg-export" command contain entries  that
cause problems with older versions of GNU tar:

-> cg-export /tmp/foo.tar.bz2
-> tar jtvf /tmp/foo.tar.bz2
?rw------- git/git          52 1970-01-01 01:00:00 pax_global_header unknown file type `g'
drwxr-xr-x git/git           0 2005-09-22 09:46:19 foo/
-rw-r--r-- git/git      134225 2005-09-22 09:46:19 foo/CHANGELOG
-rw-r--r-- git/git       15701 2005-09-22 09:46:19 foo/COPYING
-rw-r--r-- git/git        9960 2005-09-22 09:46:19 foo/CREDITS
-rw-r--r-- git/git        9578 2005-09-22 09:46:19 foo/MAINTAINERS
...
-> tar jxf foo.tar.bz2 
tar: pax_global_header: Unknown file type 'g', extracted as normal file
...
-> tar --version
tar (GNU tar) 1.13.25
...
-> rpm -q git-core cogito
git-core-0.99.7-1
cogito-0.15-1


Best regards,

Wolfgang Denk

-- 
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de
Man is the best computer we can put aboard a spacecraft ...  and  the
only one that can be mass produced with unskilled labor.
                                                 -- Wernher von Braun