slony1-ctl - slony-ctl: Modification of the "grep chain" in various

Log Message:
-----------
Modification of the "grep chain" in various tests.
Per proposal of Richard Yen.

Modified Files:
--------------
slony-ctl/outils:
create_slon.sh (r1.3 -> r1.4)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/slony1-ctl/slony-ctl/outils/create_slon.sh?r1=1.3&r2=1.4)
slony_addnode.sh (r1.4 -> r1.5)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/slony1-ctl/slony-ctl/outils/slony_addnode.sh?r1=1.4&r2=1.5)
slony_fail.sh (r1.5 -> r1.6)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/slony1-ctl/slony-ctl/outils/slony_fail.sh?r1=1.5&r2=1.6)
slony_repstat.sh (r1.3 -> r1.4)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/slony1-ctl/slony-ctl/outils/slony_repstat.sh?r1=1.3&r2=1.4)
slony_subscribe.sh (r1.2 -> r1.3)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/slony1-ctl/slony-ctl/outils/slony_subscribe.sh?r1=1.2&r2=1.3)
slony_switch.sh (r1.4 -> r1.5)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/slony1-ctl/slony-ctl/outils/slony_switch.sh?r1=1.4&r2=1.5)
upgrade_slon.sh (r1.3 -> r1.4)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/slony1-ctl/slony-ctl/outils/upgrade_slon.sh?r1=1.3&r2=1.4)