Command help fixes.

plugin.yml

@@ -74,8 +74,8 @@ commands:
       §e/<command> get (here | there | <world> <x> <y> <z>)§f - Get the zone information where the player is, where the player is looking, or at specified coordinates.
       §e/<command> replace-mob <zone-id> <entity-type> <loot-id>§f - Set the loot table that defines replacement of newly spawned mobs of the specified entity type in this zone. Use "none" as the loot table to disable replacement of a mob.
       §e/<command> list-replacements <zone-id>§f - List the loot tables responsible for defining mob replacements in the specified zone.
-      §e/<command> add-block <zone-id> <material> <loot-id>§f - Add a block type to watch for break events. When a block of the specified material is broken, consult the specified loot table to see what drops. The <material> can be a case-insensitive Bukkit material name, or an integer ID.
-      §e/<command> remove-block <zone-id> <material>§f - Remove the custom loot drop for the specified block type. The <material> can be a case-insensitive Bukkit material name, or an integer ID.
+      §e/<command> add-block <zone-id> <material> <loot-id>§f - Add a block type to watch for break events. When a block of the specified material is broken, consult the specified loot table to see what drops. The <material> must be a case-insensitive Bukkit material name.
+      §e/<command> remove-block <zone-id> <material>§f - Remove the custom loot drop for the specified block type. The <material> must be a case-insensitive Bukkit material name.
       §e/<command> list-blocks <zone-id>§f - List all block types in the zone that drop special loot, and their corresponding loot tables.
       §e/<command> inherit-replacements <zone-id> <yes-or-no>§f - Specify whether the zone inherits custom mob replacements from its parent zone.
       §e/<command> inherit-blocks <zone-id> <yes-or-no>§f - Specify whether the zone inherits custom block drops from its parent zone.