matz	2007-08-14 20:03:29 +0900 (Tue, 14 Aug 2007)

  New Revision: 12931

  Modified files:
    trunk/ChangeLog
    trunk/io.c

  Log:
    * io.c (argf_close): always close via method.
    
    * io.c (Init_IO): remove obsolete Kernel#getc.
    
    * io.c (argf_each_line): should use #each_line, not #each.
    
    * io.c (argf_each_line): simplified.
    
    * io.c (argf_getline): should handle non T_FILE object in ARGV.
    
    * io.c (argf_each_byte): each_byte should yield bytes not
      one-character strings.  [ruby-dev:31374]

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/trunk/ChangeLog?r1=12931&r2=12930
  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/trunk/io.c?r1=12931&r2=12930