GPLv2/LGPLv2.1: link to gnu.org instead of FSF address?

Hello,

Do you know if for the GPLv2 and LGPLv2.1 we can replace the FSF address
by an URL to gnu.org? Like this:

> You should have received a copy of the GNU Lesser General Public License
> along with this library; if not, see <http://www.gnu.org/licenses/>.

at the top of each source file.

At [1] section "How to Apply These Terms to Your New Libraries",
the FSF address is used, not the URL. But for version 3, it's the URL.
So I wonder if for the 2.1 version we can also use the URL. Same for
GPLv2.

Because from time to time, there is a source file with the old FSF
address that needs to be fixed, like this one:
https://bugzilla.gnome.org/show_bug.cgi?id=769895

Also, from a more practical matter, do you know if a script exists to
replace license headers in a smart way (for C code at least)? Because
the text can be wrapped at different places, there can be spaces
differences, and the license header can contain the library or program
name.

Thanks,
Sébastien

[1] https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html#SEC4