Revert "Remove Obsolute root specifiying short syntax"
Revert "Remove Obsolute root specifiying short syntax"

This reverts commit feaa7b35a0214240eb34780ab51b843571e74904.

Reason: Incorrect change. That's a Rails 4 feature and will not
obviously work in 3.2.3.

[ci skip]

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