[Bug-tar] to find out the blocking factor of an existing archive

[Dan Jacobson]

Info says
To find out the blocking factor of an existing archive, use `tar --list
--file=ARCHIVE-NAME'.  This may not work on some devices.
$ tar --list --file /mnt/extra6/crap
foo-stamp
libc6-dev_2.3.2.ds1-10_i386.deb
linux-kernel-headers_2.5.999-test7-bk-9_i386.deb
...

$ tar c /etc/motd|tar tv
tar: Removing leading `/' from member names
-rw-r--r-- root/root       362 2003-12-17 23:56:09 etc/motd

anyway, one sees no mention of blocking factor.  So fix the info page.
Oh. maybe it only says it if it is not the default. OK, say that right there.
...even though it is indeed hinted below.