Jpostcode::Address.zip_code is not set

[nishio-dens]

I am using latest version of jpostcode-rb in my product.
I noticed that I could not get Address.zip_code so I fixed it.

[126] pry(main)> a = Jpostcode.find("1500022")
=> #<Jpostcode::Address:0x00007fe3d04f4c80 @city="渋谷区", @city_kana="シブヤク", @office_name=nil, @office_name_kana=nil, @prefecture="東京都", @prefecture_code=13, @prefecture_kana="トウキョウト", @street=nil, @town="恵比寿南", @town_kana="エビスミナミ", @zip_code=nil>

[127] pry(main)> a.zip_code
=> nil

[kakipo]

@nishio-dens thx!

[tknzk]

released 0.1.11