make-stds.texi egrep/fgrep update in Gnulib

[Paul Eggert]

Karl, I see that I messed up in June, and committed a make-stds.texi 
change to a vendor branch in Savannah's CVS repository for gnustandards, 
as opposed to doing it in the main branch. (My knowledge of CVS is no 
longer what it was, and I wish Savannah would switch to Git, but I 
digress...). This was the patch to remove egrep and fgrep from the list 
of portable tools, discussed here:

https://lists.gnu.org/archive/html/bug-standards/2022-06/msg00002.html

Because of my mistake, since then when I ran Gnulib autoupdate I 
installed the vendor-branch version, whereas when you ran autoupdate you 
installed the main version. We've had dueling updates.

I just now fixed the glitch by installing the make-stds.texi change into 
gnustandards here:

https://cvs.savannah.gnu.org/viewvc/gnustandards/gnustandards/make-stds.texi?r1=1.69&r2=1.70

and propagating this into Gnulib as follows (also attached):

https://git.savannah.gnu.org/cgit/gnulib.git/commit/?id=dda9eee96e18bdbfac023bdd1598e57a88f532ad

Sorry about the confusion.

0001-autoupdate.patch
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