travis-ci/update-git.sh: don't exit non-zero on success
travis-ci/update-git.sh: don't exit non-zero on success

MaximilianMeister/crowbar,rhafer/crowbar,aspiers/crowbar,nkrinner/crowbar,rsalevsky/crowbar,rhafer/crowbar,SUSE-Cloud/crowbar,crowbar/crowbar,rsalevsky/crowbar,toabctl/crowbar,crowbar/crowbar,mmnelemane/crowbar,dirkmueller/crowbar,toabctl/crowbar,vwallfahrer/crowbar,nkrinner/crowbar,MaximilianMeister/crowbar,vwallfahrer/crowbar,mmnelemane/crowbar,aspiers/crowbar,tserong/crowbar,dirkmueller/crowbar,SUSE-Cloud/crowbar,rhafer/crowbar,tserong/crowbar,aplanas/crowbar,aplanas/crowbar