[LOGGING]: Fix multi-rollover

When there is a long difference between the last time a log was opened and now
there is a multi-rotate scenario which leaves the log files in a bit of a
mess.  This is typically seen on a worker that is spun up from an image.

This stops the multi-rotate scenario from happening in Python's on log handler
so should work for us.

Change-Id: I5b07d52965e497adf229acef9e5a040e50729849

libra/common/log.py

@@ -85,7 +85,9 @@ class CompressedTimedRotatingFileHandler(
             self.stream = codecs.open(self.baseFilename, 'w', self.encoding)
         else:
             self.stream = open(self.baseFilename, 'w')
-        self.rolloverAt = self.rolloverAt + self.interval
+        currentTime = int(time.time())
+        while self.rolloverAt <= currentTime:
+            self.rolloverAt = self.rolloverAt + self.interval
         zfile = '{0}.gz'.format(tfn)
         if os.path.exists(zfile):
             os.remove(zfile)