Correct some small bugs

lib/smsd/cli.rb

@@ -28,7 +28,7 @@ module SMSd
             sms.phone_number, sms.type_of_address)
         end
       end
-      modem.modem.close
+      modem.close
     end
 
     private
@@ -61,7 +61,7 @@ module SMSd
     def phone_numbers
       @phone_numbers ||= modem.phone_numbers
     rescue Biju::AT::CmeError
-      nil
+      []
     end
 
     def handle_message(sms)

lib/smsd/cli/options.rb

@@ -17,7 +17,7 @@ module SMSd
             options[:daemonize] = daemon
           end
 
-          opts.on('-l', '--log-file', 'Define log file') do |logfile|
+          opts.on('-l', '--log-file FILE', 'Define log file') do |logfile|
             options[:logfile] = logfile
           end
 

lib/smsd/util/multi_io.rb

@@ -5,7 +5,7 @@ module SMSd::Util
     end
 
     def write(*args)
-      @targets.each { |t| t.write(*args) }
+      @targets.each { |t| t.write(*args); t.flush }
     end
 
     def close