Обсуждение: python - lo: Don't rely on os.getlogin for getting a good default

Log Message:
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Don't rely on os.getlogin for getting a good default username.

The 'getpass.getuser' function seems to be the sanctioned facility in which to
resolve the current username.

Per pg_slythe issue reported by Adrian Klaver.

Modified Files:
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    lo/postgresql/utility/client:
        option.py (r1.2 -> r1.3)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/python/lo/postgresql/utility/client/option.py.diff?r1=1.2&r2=1.3)