[Bug-tar] tar man page

[Karl Berry]

We just received a report on webmasters that some man page for tar
refers to the wrong url http://www.gnu.org/software/tar/man.

It seems that the tar distribution doesn't include a man page.  If
that's right, it seems it would still be useful (although I know it's
not strictly necessary for GNU), to avoid errors like this.  You can
generate with help2man to avoid having an independent source to keep
updated.

Just an idea.

Best,
Karl