The mailing address of FSF changed quite a while ago.  Also the expansion
of the acronym LGPL (which we don't use) is "Lesser GPL" not "Library GPL"
these days in recent copies of GPLv2.  Update the copy we have with a
fresh download of <http://www.gnu.org/licenses/gpl-2.0.txt

>.

This incidentally removes form-feeds in the text we retained for all these
years.

Signed-off-by: Junio C Hamano <gitster@pobox.com>

Thanks to Ben Walton for pointing this out.

Let's bite the v3 bullet when it comes, although if people want to,
they can just state "or later at discretion of Linus" in their copyright
messages.