- do not read system wide my.cnf during isolated server startup

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@31935 20353a03-c40f-0410-a6d1-a30d3c3de9de

buildout/mysql-instance/buildout.cfg

@@ -52,4 +52,4 @@ datadir=${buildout:mysql_datadir}
 pid=${:datadir}/mysql.pid
 err = ${buildout:directory}/var/mysql.err.log
 sock = ${:datadir}/mysql.sock
-opt = --port=${ports:mysql} --pid-file=${:pid} --log-error=${:err} --basedir=${:basedir} --datadir=${:datadir} --socket=${:sock}
+opt = --port=${ports:mysql} --pid-file=${:pid} --log-error=${:err} --basedir=${:basedir} --datadir=${:datadir} --socket=${:sock} --no-defaults