Add extended tooltips

mods/ITEMS/mcl_fire/fire_charge.lua

@@ -3,6 +3,7 @@ local S = minetest.get_translator("mcl_fire")
 -- Fire Charge
 minetest.register_craftitem("mcl_fire:fire_charge", {
 	description = S("Fire Charge"),
+	_tt_help = S("Dispenser projectile").."\n"..S("Starts fires and ignites blocks"), 
 	_doc_items_longdesc = S("Fire charges are primarily projectiles which can be launched from dispensers, they will fly in a straight line and burst into a fire on impact. Alternatively, they can be used to ignite fires directly."),
 	_doc_items_usagehelp = S("Put the fire charge into a dispenser and supply it with redstone power to launch it. To ignite a fire directly, simply place the fire charge on the ground, which uses it up."),
 	inventory_image = "mcl_fire_fire_charge.png",

mods/ITEMS/mcl_fire/flint_and_steel.lua

@@ -3,6 +3,7 @@ local S = minetest.get_translator("mcl_fire")
 -- Flint and Steel
 minetest.register_tool("mcl_fire:flint_and_steel", {
 	description = S("Flint and Steel"),
+	_tt_help = S("Starts fires and ignites blocks"), 
 	_doc_items_longdesc = S("Flint and steel is a tool to start fires and ignite blocks."),
 	_doc_items_usagehelp = S("Rightclick the surface of a block to attempt to light a fire in front of it or ignite the block. A few blocks have an unique reaction when ignited."),
 	inventory_image = "mcl_fire_flint_and_steel.png",