pmdapostgresql: use SafeConfigparser and fix some debug diags
pmdapostgresql: use SafeConfigparser and fix some debug diags

Fix some broken debug diags.

modified:   src/pmdas/postgresql/pmdapostgresql.python

adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp