fixes documentation for returned hash in cache.fetch_multi
fixes documentation for returned hash in cache.fetch_multi

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