Start of man-pages-3.68: renaming .Announce and .lsm files
Start of man-pages-3.68: updating .Announce and .lsm files
Start of man-pages-3.68: updating Changes and Changes.old
Changes.old: Tweaks to 3.67 changelog

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
Changes.old: Add contributors to 3.67 changelog

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
Changes.old: Tweaks to 3.67 changelog

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>