Add debug info for log device

[TonyCTHsu]

What does this PR do?

Adding debug info for Logger::LogDevice

Motivation:

We have seen this flaky specs in CircleCI, especially with JRuby.

log writing failed. closed stream

The error cannot be reproduce locally but it seems to be pretty generic when trying to write to a closed stream.

logger = Logger.new('t.log')
logger.close       # => nil
logger.info('foo') # Prints "log writing failed. closed stream"

Source: https://github.com/ruby/ruby/blob/master/lib/logger/log_device.rb#L48