For changing the log format:
In the config there is a variable called `format`, this is what the general log message will look like, each variable that gets inserted has a certain code, they are listed below:

• {player} - The username of the user who placed/used the item (e.g. Millzy__)
• {item} - The ID of the item/block that was used/placed (e.g. FLINT_AND_STEEL)
• {location} - The coordinates of where the item was used/placed (e.g. 10, 123, -46)
• {world} - The world on the server that the item/block was placed/used in (e.g. the_end)