pgstatsinfo - pg_statsinfo: Fix to comapre csvlog filenames in their

Log Message:
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Fix to comapre csvlog filenames in their leafnames.
It has wrongly compared an absolute path and a leafname.

Modified Files:
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pg_statsinfo/bin:
logger.c (r1.15 -> r1.16)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgstatsinfo/pg_statsinfo/bin/logger.c?r1=1.15&r2=1.16)