Fix typo in help-message and minor update to help-message.
Fix typo in help-message and minor update to help-message.

titilambert/alignak,tal-nino/shinken,savoirfairelinux/shinken,staute/shinken_deb,mohierf/shinken,h4wkmoon/shinken,fpeyre/shinken,fpeyre/shinken,Simage/shinken,peeyush-tm/shinken,fpeyre/shinken,lets-software/shinken,rednach/krill,peeyush-tm/shinken,claneys/shinken,dfranco/shinken,peeyush-tm/shinken,ddurieux/alignak,geektophe/shinken,rednach/krill,naparuba/shinken,peeyush-tm/shinken,xorpaul/shinken,h4wkmoon/shinken,claneys/shinken,xorpaul/shinken,Simage/shinken,Aimage/shinken,lets-software/shinken,KerkhoffTechnologies/shinken,savoirfairelinux/shinken,Aimage/shinken,naparuba/shinken,kaji-project/shinken,dfranco/shinken,Aimage/shinken,Aimage/shinken,xorpaul/shinken,gst/alignak,claneys/shinken,savoirfairelinux/shinken,rednach/krill,titilambert/alignak,claneys/shinken,tal-nino/shinken,geektophe/shinken,kaji-project/shinken,claneys/shinken,dfranco/shinken,lets-software/shinken,dfranco/shinken,lets-software/shinken,fpeyre/shinken,KerkhoffTechnologies/shinken,h4wkmoon/shinken,titilambert/alignak,staute/shinken_package,Alignak-monitoring/alignak,mohierf/shinken,staute/shinken_deb,xorpaul/shinken,KerkhoffTechnologies/shinken,rledisez/shinken,h4wkmoon/shinken,kaji-project/shinken,mohierf/shinken,tal-nino/shinken,lets-software/shinken,Simage/shinken,naparuba/shinken,h4wkmoon/shinken,KerkhoffTechnologies/shinken,tal-nino/shinken,mohierf/shinken,lets-software/shinken,ddurieux/alignak,claneys/shinken,rednach/krill,gst/alignak,staute/shinken_package,kaji-project/shinken,mohierf/shinken,Aimage/shinken,KerkhoffTechnologies/shinken,rednach/krill,ddurieux/alignak,staute/shinken_deb,gst/alignak,tal-nino/shinken,gst/alignak,geektophe/shinken,h4wkmoon/shinken,kaji-project/shinken,geektophe/shinken,ddurieux/alignak,savoirfairelinux/shinken,staute/shinken_package,mohierf/shinken,savoirfairelinux/shinken,geektophe/shinken,Simage/shinken,fpeyre/shinken,rledisez/shinken,Alignak-monitoring/alignak,rledisez/shinken,staute/shinken_package,peeyush-tm/shinken,h4wkmoon/shinken,dfranco/shinken,peeyush-tm/shinken,titilambert/alignak,staute/shinken_package,xorpaul/shinken,xorpaul/shinken,naparuba/shinken,KerkhoffTechnologies/shinken,staute/shinken_deb,ddurieux/alignak,rledisez/shinken,savoirfairelinux/shinken,rednach/krill,naparuba/shinken,fpeyre/shinken,staute/shinken_deb,Aimage/shinken,geektophe/shinken,naparuba/shinken,rledisez/shinken,kaji-project/shinken,ddurieux/alignak,xorpaul/shinken,Simage/shinken,staute/shinken_package,tal-nino/shinken,staute/shinken_deb,Simage/shinken,dfranco/shinken,h4wkmoon/shinken,rledisez/shinken,xorpaul/shinken,kaji-project/shinken