[ruby-cvs:78698] e8c62836a6 (master): IO#set_encoding_by_bom should err when encoding is already set

"Nobuyoshi Nakada" <[email protected]> Sun, 15 Dec 2019 23:17:15 +0900 (JST)

Newsgroups	gmane.comp.lang.ruby.cvs
Message-ID	<[email protected]>

Nobuyoshi Nakada	2019-12-15 23:13:16 +0900 (Sun, 15 Dec 2019)

  New Revision: e8c62836a6

  https://github.com/ruby/ruby/commit/e8c62836a6

  Log:
    IO#set_encoding_by_bom should err when encoding is already set
    
    Except for ASCII-8BIT.  [Bug #16422]

  Modified files:
    io.c
    test/ruby/test_io_m17n.rb