Fix false positive test related to wrong app root path.
Fix false positive test related to wrong app root path.

Without setting root config, `config.paths["config/secrets"]`
located in https://github.com/rails/rails/blob/84eb498f84ebc5d1be0b0db6f7bca9da3d679ca6/railties/lib/rails/application.rb#L390
always returned empty list.

joonyou/rails,georgeclaghorn/rails,aditya-kapoor/rails,Erol/rails,iainbeeston/rails,schuetzm/rails,yalab/rails,baerjam/rails,rails/rails,lcreid/rails,aditya-kapoor/rails,flanger001/rails,felipecvo/rails,georgeclaghorn/rails,tjschuck/rails,kaspth/rails,palkan/rails,Envek/rails,georgeclaghorn/rails,EmmaB/rails-1,esparta/rails,alecspopa/rails,Erol/rails,yahonda/rails,palkan/rails,rails/rails,utilum/rails,BlakeWilliams/rails,Stellenticket/rails,printercu/rails,Edouard-chin/rails,rafaelfranca/omg-rails,illacceptanything/illacceptanything,starknx/rails,gauravtiwari/rails,georgeclaghorn/rails,yasslab/railsguides.jp,baerjam/rails,alecspopa/rails,kddeisz/rails,rafaelfranca/omg-rails,mechanicles/rails,tgxworld/rails,joonyou/rails,palkan/rails,yhirano55/rails,utilum/rails,EmmaB/rails-1,yawboakye/rails,vipulnsward/rails,notapatch/rails,yasslab/railsguides.jp,illacceptanything/illacceptanything,gfvcastro/rails,bogdanvlviv/rails,kmayer/rails,pvalena/rails,bogdanvlviv/rails,prathamesh-sonpatki/rails,illacceptanything/illacceptanything,kirs/rails-1,illacceptanything/illacceptanything,travisofthenorth/rails,repinel/rails,jeremy/rails,illacceptanything/illacceptanything,fabianoleittes/rails,kmayer/rails,illacceptanything/illacceptanything,kmayer/rails,illacceptanything/illacceptanything,mechanicles/rails,odedniv/rails,notapatch/rails,eileencodes/rails,mathieujobin/reduced-rails-for-travis,eileencodes/rails,shioyama/rails,BlakeWilliams/rails,notapatch/rails,Edouard-chin/rails,deraru/rails,shioyama/rails,bogdanvlviv/rails,prathamesh-sonpatki/rails,yahonda/rails,betesh/rails,Stellenticket/rails,assain/rails,felipecvo/rails,jeremy/rails,mohitnatoo/rails,gfvcastro/rails,assain/rails,EmmaB/rails-1,shioyama/rails,pvalena/rails,kmcphillips/rails,vipulnsward/rails,hanystudy/rails,repinel/rails,pvalena/rails,schuetzm/rails,yhirano55/rails,yalab/rails,mohitnatoo/rails,Sen-Zhang/rails,yawboakye/rails,Vasfed/rails,kddeisz/rails,prathamesh-sonpatki/rails,eileencodes/rails,brchristian/rails,pvalena/rails,kamipo/rails,arunagw/rails,fabianoleittes/rails,illacceptanything/illacceptanything,arunagw/rails,lcreid/rails,deraru/rails,yasslab/railsguides.jp,assain/rails,hanystudy/rails,bogdanvlviv/rails,repinel/rails,gcourtemanche/rails,tgxworld/rails,illacceptanything/illacceptanything,felipecvo/rails,yasslab/railsguides.jp,gauravtiwari/rails,betesh/rails,utilum/rails,illacceptanything/illacceptanything,esparta/rails,rails/rails,kamipo/rails,joonyou/rails,tgxworld/rails,notapatch/rails,Vasfed/rails,iainbeeston/rails,mechanicles/rails,Erol/rails,travisofthenorth/rails,Edouard-chin/rails,Envek/rails,eileencodes/rails,Sen-Zhang/rails,kddeisz/rails,kmcphillips/rails,betesh/rails,untidy-hair/rails,repinel/rails,printercu/rails,baerjam/rails,MSP-Greg/rails,rails/rails,illacceptanything/illacceptanything,starknx/rails,Erol/rails,MSP-Greg/rails,MSP-Greg/rails,fabianoleittes/rails,Edouard-chin/rails,aditya-kapoor/rails,ledestin/rails,palkan/rails,illacceptanything/illacceptanything,Envek/rails,yhirano55/rails,BlakeWilliams/rails,tjschuck/rails,kirs/rails-1,Envek/rails,deraru/rails,gauravtiwari/rails,gfvcastro/rails,lcreid/rails,vipulnsward/rails,MSP-Greg/rails,kmcphillips/rails,yahonda/rails,kmcphillips/rails,joonyou/rails,odedniv/rails,lcreid/rails,yahonda/rails,mathieujobin/reduced-rails-for-travis,yhirano55/rails,untidy-hair/rails,mechanicles/rails,untidy-hair/rails,schuetzm/rails,tjschuck/rails,assain/rails,illacceptanything/illacceptanything,odedniv/rails,deraru/rails,Sen-Zhang/rails,flanger001/rails,Vasfed/rails,alecspopa/rails,mohitnatoo/rails,brchristian/rails,kaspth/rails,untidy-hair/rails,kddeisz/rails,mathieujobin/reduced-rails-for-travis,Vasfed/rails,tjschuck/rails,illacceptanything/illacceptanything,travisofthenorth/rails,printercu/rails,flanger001/rails,baerjam/rails,esparta/rails,kamipo/rails,schuetzm/rails,betesh/rails,prathamesh-sonpatki/rails,kaspth/rails,Stellenticket/rails,iainbeeston/rails,printercu/rails,arunagw/rails,yalab/rails,yawboakye/rails,kirs/rails-1,BlakeWilliams/rails,mohitnatoo/rails,ledestin/rails,flanger001/rails,gcourtemanche/rails,utilum/rails,ledestin/rails,yawboakye/rails,starknx/rails,hanystudy/rails,jeremy/rails,Stellenticket/rails,aditya-kapoor/rails,yalab/rails,shioyama/rails,illacceptanything/illacceptanything,vipulnsward/rails,jeremy/rails,tgxworld/rails,travisofthenorth/rails,iainbeeston/rails,gfvcastro/rails,fabianoleittes/rails,brchristian/rails,esparta/rails,gcourtemanche/rails,rafaelfranca/omg-rails,arunagw/rails