Fix use of the default plugin dir path in the logging startup when no plugin_dir is configured.  Slightly worsens duplication of code with plugin_dir() to continue avoiding infinite recursion.
Fix use of the default plugin dir path in the logging startup when no
plugin_dir is configured.  Slightly worsens duplication of code with
plugin_dir() to continue avoiding infinite recursion.


git-svn-id: 64a18847b464f85e39c77910fd9dc4a9549dd70a@674 958fd67b-6ff1-0310-b445-bb7760255be9

msimerson/qpsmtpd,vetinari/qpsmtpd,smtpd/qpsmtpd,sieutruc/qpsmtpd,smtpd/qpsmtpd,priyadi/qpsmtpd,priyadi/qpsmtpd,msimerson/qpsmtpd,sieutruc/qpsmtpd,vetinari/qpsmtpd,priyadi/qpsmtpd,salvis/qpsmtpd,sieutruc/qpsmtpd,salvis/qpsmtpd