[ruby-cvs:78321] 51ea1abb5f (master): Remove e2mmap dependency

aycabta	2019-11-25 05:38:09 +0900 (Mon, 25 Nov 2019)

  New Revision: 51ea1abb5f

  https://github.com/ruby/ruby/commit/51ea1abb5f

  Log:
    Remove e2mmap dependency

  Modified files:
    lib/irb.rb
    lib/irb/ext/multi-irb.rb
    lib/irb/frame.rb
    lib/irb/init.rb
    lib/irb/input-method.rb
    lib/irb/lc/error.rb
    lib/irb/lc/ja/error.rb
    lib/irb/notifier.rb
    lib/irb/output-method.rb
    lib/irb/ruby-lex.rb
    lib/irb/workspace.rb