[ruby-cvs:78727] b39d5da974 (master): [ruby/io-console] Use TCSANOW to prevent from discarding the input buffer

Yusuke Endoh	2019-12-14 19:15:02 +0900 (Sat, 14 Dec 2019)

  New Revision: b39d5da974

  https://github.com/ruby/ruby/commit/b39d5da974

  Log:
    [ruby/io-console] Use TCSANOW to prevent from discarding the input buffer
    
    TCSAFLUSH discards the buffer read before the mode change, which makes
    IRB ignore the buffer input immediately after invoked.  TCSANOW
    preserves the buffer.
    
    https://github.com/ruby/io-console/commit/b362920182

  Modified files:
    ext/io/console/console.c