to run the script even if mysqld is not up and running on upgrade


scripts/mysql_fix_privilege_tables.sh:
   - applied Patch provided by Christian Hammers from Debian to be able to run
     this script on every upgrade without having to worry that the server
     is really running. Therefore "mysqld --bootstrap" is used to make the
     changes. For this to work all SQL statements are sent to stderr when
     "--sqlonly" is given and the echo's are piped to /dev/null.
     The echo_stderr that is used is just a "#!/bin/sh\necho "$*" >&2"
     script.