Bug#1139918: bacula-fd: New xxhash signatures and zstd compression does not work

[Pierre Bernhardt]

retitle 1139918 bacula-fd: New xxhash signatures and zstd compression does not 
work

Looks like xxh3 not a community based signature.
By the way using xxhash does not work, too:

*me
14-Jun 15:15 backup-dir: ERROR in inc_conf.c:350 Config error: Expected a 
FileSet option keyword, got:xxhash:
            : line 33, col 30 of file /etc/bacula/fileset.conf
            signature = xxhash;

14-Jun 15:15 backup-dir: ERROR in inc_conf.c:350 Config error: Expected a 
FileSet option keyword, got:xxhash:
            : line 44, col 30 of file /etc/bacula/fileset.conf
            signature = xxhash;