Merge PR #22446 into master

* refs/pull/22446/head:
	relicense LGPL-2.1 code as LGPL-2.1 or LGPL-3.0
	COPYING: add reference to a few Apache-2.0 licensed source files
	debian/copyright: sync with COPYING
	COPYING: LGPL2.1 -> LGPL-2.1
	COPYING: extra bits from debian/copyright

Reviewed-by: Jason Dillaman <dillaman@redhat.com>
Reviewed-by: Neha Ojha <nojha@redhat.com>
Reviewed-by: Sebastian Wagner <swagner@suse.com>

diff --cc alpine/APKBUILD.in
Simple merge

diff --cc ceph.spec.in
Simple merge