Improve system hook spec in spec/services/git_push_service_spec.rb
Improve system hook spec in spec/services/git_push_service_spec.rb

axilleas/gitlabhq,stoplightio/gitlabhq,stoplightio/gitlabhq,jirutka/gitlabhq,axilleas/gitlabhq,iiet/iiet-git,iiet/iiet-git,dreampet/gitlab,jirutka/gitlabhq,stoplightio/gitlabhq,jirutka/gitlabhq,mmkassem/gitlabhq,mmkassem/gitlabhq,dreampet/gitlab,mmkassem/gitlabhq,dreampet/gitlab,dreampet/gitlab,axilleas/gitlabhq,mmkassem/gitlabhq,jirutka/gitlabhq,iiet/iiet-git,stoplightio/gitlabhq,iiet/iiet-git,axilleas/gitlabhq