BIND 10 #1081: some log4cplus errors are propagated

[BIND 10 Development]

#1081: some log4cplus errors are propagated
--------------------------------+-----------------------------------------
            Reporter:  jinmei   |                        Owner:
                Type:  defect   |                       Status:  new
            Priority:  major    |                    Milestone:  New Tasks
           Component:  logging  |                     Keywords:
           Sensitive:  0        |              Defect Severity:  N/A
         Sub-Project:  Core     |  Feature Depending on Ticket:
Estimated Difficulty:  0        |          Add Hours to Ticket:  0
         Total Hours:  0        |                    Internal?:  0
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 I've seen these messages when I started BIND10 with some logging
 configurations:
 {{{
 log4cplus:ERROR Unable to open file: /home/jinmei/opt/var/log/bind10.log
 log4cplus:WARN RollingFileAppender: MaxFileSize property value is too
 small. Resetting to 204800.
 log4cplus:WARN RollingFileAppender: MaxFileSize property value is too
 small. Resetting to 204800.
 }}}

 These seem to be dumped from liblog4cplus and are propagated to stderr.

 IMO our wrapper interface (liblog) should catch (or suppress) these.

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Ticket URL: <http://bind10.isc.org/ticket/1081>
BIND 10 Development <http://bind10.isc.org>
BIND 10 Development