add_announcement.rb in slack-smart-bot-1.11.0

- old
+ new

@@ -6,10 +6,10 @@
       if Thread.current[:typem] == :on_call
         channel = Thread.current[:dchannel]
       else
         channel = Thread.current[:dest]
       end
-      if File.exists?("#{config.path}/announcements/#{channel}.csv") and !@announcements.key?(channel)
+      if File.exist?("#{config.path}/announcements/#{channel}.csv") and !@announcements.key?(channel)
         t = CSV.table("#{config.path}/announcements/#{channel}.csv", headers: ['message_id', 'user_deleted', 'user_created', 'date', 'time', 'type', 'message'])
         @announcements[channel] = t
         num = t[:message_id].max + 1
       elsif !@announcements.key?(channel)
         File.open("#{config.path}/announcements/#{channel}.csv","w")