Start of man-pages-3.73: renaming .Announce and .lsm files
Start of man-pages-3.73: updating .Announce and .lsm files
Start of man-pages-3.73: updating Changes and Changes.old
flock.2: Don't mention "classical BSD" in discussion of fcntl()/flock interaction

The noninteraction of flock(2) and fcntl(2) locks does
not seem to be classical BSD semantics (at least, checking
the 4.4BSD sources suggest that the lock types do interact,
although there have been other systems also where fcntl()
and flock() locks do not interact). So, fix the text
discussing "classical BSD" lock semantics.

Reported-by: J. Bruce Fields <bfields@fieldses.org>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>