Add descriptive comments for rubocop-rspec cops
Add descriptive comments for rubocop-rspec cops

[ci skip]

dplarson/gitlabhq,screenpages/gitlabhq,martijnvermaat/gitlabhq,daiyu/gitlab-zh,allysonbarros/gitlabhq,axilleas/gitlabhq,mr-dxdy/gitlabhq,t-zuehlsdorff/gitlabhq,LUMC/gitlabhq,SVArago/gitlabhq,mmkassem/gitlabhq,Soullivaneuh/gitlabhq,stoplightio/gitlabhq,screenpages/gitlabhq,mmkassem/gitlabhq,jirutka/gitlabhq,htve/GitlabForChinese,SVArago/gitlabhq,axilleas/gitlabhq,daiyu/gitlab-zh,stoplightio/gitlabhq,openwide-java/gitlabhq,openwide-java/gitlabhq,screenpages/gitlabhq,SVArago/gitlabhq,iiet/iiet-git,darkrasid/gitlabhq,axilleas/gitlabhq,dreampet/gitlab,iiet/iiet-git,daiyu/gitlab-zh,icedwater/gitlabhq,iiet/iiet-git,icedwater/gitlabhq,allysonbarros/gitlabhq,martijnvermaat/gitlabhq,t-zuehlsdorff/gitlabhq,dreampet/gitlab,shinexiao/gitlabhq,icedwater/gitlabhq,icedwater/gitlabhq,darkrasid/gitlabhq,shinexiao/gitlabhq,openwide-java/gitlabhq,LUMC/gitlabhq,htve/GitlabForChinese,martijnvermaat/gitlabhq,shinexiao/gitlabhq,htve/GitlabForChinese,mr-dxdy/gitlabhq,htve/GitlabForChinese,darkrasid/gitlabhq,jirutka/gitlabhq,daiyu/gitlab-zh,LUMC/gitlabhq,stoplightio/gitlabhq,iiet/iiet-git,dplarson/gitlabhq,mmkassem/gitlabhq,mr-dxdy/gitlabhq,LUMC/gitlabhq,jirutka/gitlabhq,allysonbarros/gitlabhq,dplarson/gitlabhq,Soullivaneuh/gitlabhq,darkrasid/gitlabhq,SVArago/gitlabhq,shinexiao/gitlabhq,Soullivaneuh/gitlabhq,dreampet/gitlab,mmkassem/gitlabhq,openwide-java/gitlabhq,allysonbarros/gitlabhq,martijnvermaat/gitlabhq,screenpages/gitlabhq,Soullivaneuh/gitlabhq,jirutka/gitlabhq,stoplightio/gitlabhq,t-zuehlsdorff/gitlabhq,mr-dxdy/gitlabhq,axilleas/gitlabhq,t-zuehlsdorff/gitlabhq,dplarson/gitlabhq,dreampet/gitlab