'config-invalid-db-type' => 'Invalid database type',
'config-missing-db-name' => 'You must enter a value for "Database name"',
'config-invalid-db-name' => 'Invalid database name "$1".
-It may only contain numbers, letters and underscores.',
+Use only ACSII letters (a-z, A-Z), numbers (0-9) and underscores (_).',
'config-invalid-db-prefix' => 'Invalid database prefix "$1".
-It may only contain numbers, letters and underscores.',
+Use only ACSII letters (a-z, A-Z), numbers (0-9) and underscores (_).',
'config-connection-error' => '$1.
Check the host, username and password below and try again.',
'config-invalid-schema' => 'Invalid schema for MediaWiki "$1".
-Use only letters, numbers and underscores.',
+Use only ACSII letters (a-z, A-Z), numbers (0-9) and underscores (_).',
'config-invalid-ts2schema' => 'Invalid schema for tsearch2 "$1".
-Use only letters, numbers and underscores.',
+Use only ACSII letters (a-z, A-Z), numbers (0-9) and underscores (_).',
'config-postgres-old' => 'PostgreSQL $1 or later is required, you have $2.',
'config-sqlite-name-help' => 'Choose a name that identifies your wiki.
Do not use spaces or hyphens.