Fix log messages for converting dump using cvs2git.

fix-logmsg.rb

#!/usr/bin/env ruby

require "nkf"

ARGF.each do |line|
   case line
   when /^data\s+(\d+)$/
      log_msg = ARGF.read( $1.to_i )
      log_msg = NKF.nkf( "-wm0", log_msg )
      puts "data #{ log_msg.size }"
      print log_msg
   when /^committer\s+/
      line.sub!( /masao(\s+\<\>)?/, "masao <tmasao@acm.org>" )
      line.sub!( /yuka(\s+\<\>)?/, "yegusa <yuka@nier.go.jp>" )
      print line
   else
      print line
   end
end