SCRIPTS: announce-release: allow the user to force to overwrite old files

When starting the script multiple times, one had to remove the previous
files by hand. Now with -f it's not needed anymore, they get removed.

(cherry picked from commit 3823408b6063c8955d22532903f96b40601f57ed)
Signed-off-by: Willy Tarreau <w@1wt.eu>
(cherry picked from commit 7ad65480d13d378321c432e6f623344200c3ee9a)
Signed-off-by: Willy Tarreau <w@1wt.eu>
1 file changed