ceph/ceph — pull request #1908 by jdurgin (2014-06-03 00:36:42+00:00)
Title: librbd: clarify license header

These were meant to say LGPL, but a typo was propagated and it referred to
the non-existent GPL2.1, and also to COPYING which correctly indicated these
files were LGPL2.1.

Signed-off-by: Josh Durgin