'readonly_lag' => 'The database has been automatically locked while the slave database servers catch up to the master',
'internalerror' => 'Internal error',
'internalerror_info' => 'Internal error: $1',
-'fileappenderror' => 'Could not append "$1" to "$2".',
'filecopyerror' => 'Could not copy file "$1" to "$2".',
'filerenameerror' => 'Could not rename file "$1" to "$2".',
'filedeleteerror' => 'Could not delete file "$1".',