Fixed two typos in wireshark lua file.

util/wireshark/minetest.lua

@@ -117,7 +117,7 @@ end
 
 do
 	local f_count = ProtoField.uint8("minetest.client.gotblocks_count", "Count", base.DEC)
-	local f_block = ProtoField.bytes("minetset.client.gotblocks_block", "Block", base.DEC)
+	local f_block = ProtoField.bytes("minetest.client.gotblocks_block", "Block", base.DEC)
 	local f_x = ProtoField.int16("minetest.client.gotblocks_x", "Block position X", base.DEC)
 	local f_y = ProtoField.int16("minetest.client.gotblocks_y", "Block position Y", base.DEC)
 	local f_z = ProtoField.int16("minetest.client.gotblocks_z", "Block position Z", base.DEC)
@@ -151,7 +151,7 @@ end
 
 do
 	local f_count = ProtoField.uint8("minetest.client.deletedblocks_count", "Count", base.DEC)
-	local f_block = ProtoField.bytes("minetset.client.deletedblocks_block", "Block", base.DEC)
+	local f_block = ProtoField.bytes("minetest.client.deletedblocks_block", "Block", base.DEC)
 	local f_x = ProtoField.int16("minetest.client.deletedblocks_x", "Block position X", base.DEC)
 	local f_y = ProtoField.int16("minetest.client.deletedblocks_y", "Block position Y", base.DEC)
 	local f_z = ProtoField.int16("minetest.client.deletedblocks_z", "Block position Z", base.DEC)