fixes warning in the AR test suite
fixes warning in the AR test suite

mtsmfm/railstest,rbhitchcock/rails,eileencodes/rails,sealocal/rails,untidy-hair/rails,gavingmiller/rails,kamipo/rails,rails/rails,MSP-Greg/rails,kamipo/rails,tjschuck/rails,tijwelch/rails,voray/rails,brchristian/rails,utilum/rails,voray/rails,felipecvo/rails,voray/rails,tgxworld/rails,gfvcastro/rails,hanystudy/rails,esparta/rails,tgxworld/rails,kaspth/rails,koic/rails,vassilevsky/rails,xlymian/rails,deraru/rails,MSP-Greg/rails,Edouard-chin/rails,vipulnsward/rails,kachick/rails,BlakeWilliams/rails,joonyou/rails,Stellenticket/rails,kmcphillips/rails,arunagw/rails,iainbeeston/rails,EmmaB/rails-1,maicher/rails,starknx/rails,printercu/rails,yalab/rails,printercu/rails,hanystudy/rails,Stellenticket/rails,Stellenticket/rails,Erol/rails,coreyward/rails,utilum/rails,tjschuck/rails,prathamesh-sonpatki/rails,georgeclaghorn/rails,mathieujobin/reduced-rails-for-travis,kachick/rails,samphilipd/rails,Vasfed/rails,odedniv/rails,vipulnsward/rails,flanger001/rails,betesh/rails,iainbeeston/rails,mtsmfm/railstest,yahonda/rails,felipecvo/rails,assain/rails,gavingmiller/rails,notapatch/rails,kddeisz/rails,matrinox/rails,tgxworld/rails,starknx/rails,yahonda/rails,georgeclaghorn/rails,baerjam/rails,tijwelch/rails,aditya-kapoor/rails,Sen-Zhang/rails,Envek/rails,mtsmfm/rails,illacceptanything/illacceptanything,Vasfed/rails,Edouard-chin/rails,mohitnatoo/rails,illacceptanything/illacceptanything,yhirano55/rails,rafaelfranca/omg-rails,repinel/rails,amoody2108/TechForJustice,palkan/rails,yawboakye/rails,flanger001/rails,samphilipd/rails,xlymian/rails,repinel/rails,deraru/rails,rails/rails,mathieujobin/reduced-rails-for-travis,MSP-Greg/rails,rails/rails,ttanimichi/rails,mijoharas/rails,repinel/rails,bogdanvlviv/rails,prathamesh-sonpatki/rails,utilum/rails,arjes/rails,illacceptanything/illacceptanything,vipulnsward/rails,mechanicles/rails,kenta-s/rails,Edouard-chin/rails,kamipo/rails,riseshia/railsguides.kr,MSP-Greg/rails,richseviora/rails,esparta/rails,illacceptanything/illacceptanything,alecspopa/rails,BlakeWilliams/rails,kirs/rails-1,lucasmazza/rails,richseviora/rails,Spin42/rails,Erol/rails,yalab/rails,pvalena/rails,yawboakye/rails,BlakeWilliams/rails,maicher/rails,Sen-Zhang/rails,yasslab/railsguides.jp,88rabbit/newRails,rossta/rails,yawboakye/rails,rails/rails,palkan/rails,assain/rails,lcreid/rails,repinel/rails,printercu/rails,kddeisz/rails,tjschuck/rails,elfassy/rails,ledestin/rails,gcourtemanche/rails,mechanicles/rails,eileencodes/rails,sealocal/rails,joonyou/rails,matrinox/rails,pvalena/rails,kenta-s/rails,amoody2108/TechForJustice,pschambacher/rails,bradleypriest/rails,kaspth/rails,lcreid/rails,assain/rails,riseshia/railsguides.kr,shioyama/rails,kmayer/rails,notapatch/rails,sergey-alekseev/rails,Edouard-chin/rails,gfvcastro/rails,alecspopa/rails,yhirano55/rails,EmmaB/rails-1,schuetzm/rails,stefanmb/rails,ngpestelos/rails,georgeclaghorn/rails,vipulnsward/rails,illacceptanything/illacceptanything,deraru/rails,MichaelSp/rails,betesh/rails,bradleypriest/rails,riseshia/railsguides.kr,assain/rails,aditya-kapoor/rails,mohitnatoo/rails,baerjam/rails,kmcphillips/rails,yasslab/railsguides.jp,Envek/rails,illacceptanything/illacceptanything,notapatch/rails,kddeisz/rails,mechanicles/rails,richseviora/rails,gfvcastro/rails,bogdanvlviv/rails,aditya-kapoor/rails,gfvcastro/rails,travisofthenorth/rails,shioyama/rails,sergey-alekseev/rails,mtsmfm/rails,xlymian/rails,tjschuck/rails,illacceptanything/illacceptanything,rossta/rails,rbhitchcock/rails,elfassy/rails,baerjam/rails,bogdanvlviv/rails,stefanmb/rails,Stellenticket/rails,vassilevsky/rails,Vasfed/rails,jeremy/rails,gcourtemanche/rails,odedniv/rails,marklocklear/rails,lucasmazza/rails,yalab/rails,alecspopa/rails,arjes/rails,arunagw/rails,illacceptanything/illacceptanything,coreyward/rails,aditya-kapoor/rails,prathamesh-sonpatki/rails,rafaelfranca/omg-rails,rossta/rails,coreyward/rails,Envek/rails,pschambacher/rails,odedniv/rails,MichaelSp/rails,illacceptanything/illacceptanything,starknx/rails,notapatch/rails,rafaelfranca/omg-rails,jeremy/rails,travisofthenorth/rails,mijoharas/rails,fabianoleittes/rails,prathamesh-sonpatki/rails,stefanmb/rails,jeremy/rails,yasslab/railsguides.jp,samphilipd/rails,illacceptanything/illacceptanything,illacceptanything/illacceptanything,untidy-hair/rails,arunagw/rails,mohitnatoo/rails,vassilevsky/rails,yasslab/railsguides.jp,flanger001/rails,Envek/rails,shioyama/rails,pschambacher/rails,deraru/rails,fabianoleittes/rails,BlakeWilliams/rails,marklocklear/rails,yhirano55/rails,travisofthenorth/rails,ledestin/rails,kirs/rails-1,kmcphillips/rails,iainbeeston/rails,amoody2108/TechForJustice,Erol/rails,Spin42/rails,esparta/rails,illacceptanything/illacceptanything,yahonda/rails,illacceptanything/illacceptanything,koic/rails,koic/rails,flanger001/rails,gauravtiwari/rails,yawboakye/rails,tgxworld/rails,kaspth/rails,felipecvo/rails,yalab/rails,illacceptanything/illacceptanything,88rabbit/newRails,bolek/rails,sergey-alekseev/rails,gauravtiwari/rails,untidy-hair/rails,arjes/rails,bolek/rails,88rabbit/newRails,schuetzm/rails,betesh/rails,kirs/rails-1,gauravtiwari/rails,pvalena/rails,marklocklear/rails,tijwelch/rails,mtsmfm/rails,shioyama/rails,kmcphillips/rails,ngpestelos/rails,fabianoleittes/rails,travisofthenorth/rails,palkan/rails,Vasfed/rails,EmmaB/rails-1,elfassy/rails,esparta/rails,mtsmfm/railstest,bolek/rails,gavingmiller/rails,MichaelSp/rails,yhirano55/rails,Spin42/rails,kddeisz/rails,fabianoleittes/rails,ttanimichi/rails,joonyou/rails,rbhitchcock/rails,lcreid/rails,ttanimichi/rails,mohitnatoo/rails,maicher/rails,mechanicles/rails,lucasmazza/rails,lcreid/rails,gcourtemanche/rails,betesh/rails,schuetzm/rails,jeremy/rails,Sen-Zhang/rails,hanystudy/rails,mathieujobin/reduced-rails-for-travis,kmayer/rails,yahonda/rails,riseshia/railsguides.kr,iainbeeston/rails,baerjam/rails,ledestin/rails,bogdanvlviv/rails,untidy-hair/rails,kachick/rails,arunagw/rails,bradleypriest/rails,ngpestelos/rails,eileencodes/rails,kmayer/rails,palkan/rails,pvalena/rails,schuetzm/rails,matrinox/rails,brchristian/rails,utilum/rails,eileencodes/rails,mijoharas/rails,joonyou/rails,georgeclaghorn/rails,illacceptanything/illacceptanything,Erol/rails,kenta-s/rails,printercu/rails,brchristian/rails,sealocal/rails