2022-01-16  gettextize  <bug-gnu-gettext@gnu.org>

	* Makefile.in.in: Upgrade to gettext-0.21.
	* Rules-quot: Upgrade to gettext-0.21.
	* en@boldquot.header: Upgrade to gettext-0.21.
	* en@quot.header: Upgrade to gettext-0.21.
	* insert-header.sin: Upgrade to gettext-0.21.
	* remove-potcdate.sin: Upgrade to gettext-0.21.

