Defines the charset which will be used to store data in the database.
All other character sets will be converted into the given charset.
Take a look into mnoGoSearch documentation for detailed explanation how to choose a LocalCharset depending on languages used on your site(s).
This command should be used once and takes global effect for the config file.
Take a look into the documentation to check the whole list of supported charsets.
Default LocalCharset is ISO-8859-1 (Latin1).