vlog: Skip reopening a log file if it would have no effect.
authorBen Pfaff <blp@nicira.com>
Fri, 14 Oct 2011 18:37:24 +0000 (11:37 -0700)
committerBen Pfaff <blp@nicira.com>
Tue, 18 Oct 2011 20:51:11 +0000 (13:51 -0700)
Avoids redundant "closing log file"/"opened log file" messages in log files.

Reported-by: Reid Price <reid@nicira.com>
Bug #7750.


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