Unfortunately the returned value of "hostname" is inconsistent on
   various platforms - some return the host name only, others return the
   FQDN by default. On Linux, one can use option "-f" to enable the output
   of the FQDN. Use it, if available.


scripts/mysql_install_db.sh:
   - try harder to obtain the FQDN with "hostname -f", if possible (BUG#897)