change `require: nil` to `require: false`
change `require: nil` to `require: false`

require: nil and require: false get same result, but i think we shouldn't write it differently in other places.

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