[ruby-cvs:52816] nobu:r45670 (trunk): stringio.c: use rb_str_append

[nobu at ruby-lang.org]

nobu	2014-04-22 23:14:30 +0900 (Tue, 22 Apr 2014)

  New Revision: 45670

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=45670

  Log:
    stringio.c: use rb_str_append
    
    * ext/stringio/stringio.c (strio_write): use rb_str_append to
      reuse coderange bits and keep taintedness.
      [ruby-dev:48118] [Bug #9769]

  Modified files:
    trunk/ChangeLog
    trunk/ext/stringio/stringio.c
    trunk/test/stringio/test_stringio.rb