Thread: python - lo: Don't try to resolve the path.

Log Message:
-----------
Don't try to resolve the path. Doing so can be difficult on platforms which have
special extensions for executables(windows). (I can't seem to find an os
executable extension string anywhere in the os module)
Validation now occurs by executing it(--version). However, an OSError is raised
instead of a LookupError.

Modified Files:
--------------
    lo/postgresql/utility:
        config.py (r1.1 -> r1.2)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/python/lo/postgresql/utility/config.py.diff?r1=1.1&r2=1.2)