* language/chinese.el (chinese-iso-8bit): MIME:GB2312.

* language/chinese.el (chinese-iso-8bit): MIME:GB2312.
(chinese-big5): MIME:Big5.

[ cited from ftp://ftp.isi.edu/in-notes/iana/assignments/character-sets ]

Name: GB2312  (preferred MIME name)
MIBenum: 2025
Source: Chinese for People's Republic of China (PRC) mixed one byte,
        two byte set:
          20-7E = one byte ASCII
          A1-FE = two byte PRC Kanji
        See GB 2312-80
        PCL Symbol Set Id: 18C
Alias: csGB2312

Name: Big5  (preferred MIME name)
MIBenum: 2026
Source: Chinese for Taiwan Multi-byte set.
        PCL Symbol Set Id: 18T
Alias: csBig5