* Fix MungeLine() for log lines that are longer than 5 characters
* Match order of log statements in logging_unittest.cc and logging_unittest.err
* Update logging_custom_prefix_unittest.cc and logging_custom_prefix_unittest.err to match logging_unittest.cc and logging_unittest.err
* Save the stream state and set the fill character before calling into a custom_prefix_callback
* Prepend the year to each glog line (#516)
This PR fixes issue #516 by prepending the year to each glog line.
Previous format of each line in a log file:
[IWEF]mmdd hh:mm:ss.uuuuuu threadid file:line] msg
New format:
[IWEF]yyyymmdd hh:mm:ss.uuuuuu threadid file:line] msg
* Fix logging_unittest for PR #530
Since the format of each glog line has been changed,
the logging_unittest must also be updated.
