Log Message:
-----------
Add check configuration file
Add help on error
Clean file
Modified Files:
--------------
slony-ctl/outils:
supervision.sh (r1.2 -> r1.3)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/slony1-ctl/slony-ctl/outils/supervision.sh?r1=1.2&r2=1.3)