Remove the random line at the beginning of every new log file

activesupport/lib/active_support/buffered_logger.rb

@@ -53,7 +53,6 @@ def initialize(log, level = DEBUG)
         FileUtils.mkdir_p(File.dirname(log))
         @log = open(log, (File::WRONLY | File::APPEND | File::CREAT))
         @log.sync = true
-        @log.write("# Logfile created on %s" % [Time.now.to_s])
       end
     end