Fix cache_timestamp_format default value in guides
Fix cache_timestamp_format default value in guides

repinel/rails,notapatch/rails,jeremy/rails,joonyou/rails,kddeisz/rails,Vasfed/rails,kmcphillips/rails,bogdanvlviv/rails,vipulnsward/rails,georgeclaghorn/rails,rafaelfranca/omg-rails,kddeisz/rails,mechanicles/rails,Vasfed/rails,yalab/rails,tjschuck/rails,palkan/rails,yawboakye/rails,Envek/rails,betesh/rails,lcreid/rails,notapatch/rails,jeremy/rails,Edouard-chin/rails,gauravtiwari/rails,fabianoleittes/rails,mechanicles/rails,kmcphillips/rails,BlakeWilliams/rails,eileencodes/rails,lcreid/rails,vipulnsward/rails,joonyou/rails,bogdanvlviv/rails,tjschuck/rails,starknx/rails,starknx/rails,yawboakye/rails,Stellenticket/rails,repinel/rails,arunagw/rails,Vasfed/rails,georgeclaghorn/rails,yhirano55/rails,betesh/rails,tgxworld/rails,schuetzm/rails,Vasfed/rails,starknx/rails,Stellenticket/rails,tjschuck/rails,shioyama/rails,schuetzm/rails,rails/rails,yalab/rails,shioyama/rails,schuetzm/rails,fabianoleittes/rails,palkan/rails,prathamesh-sonpatki/rails,rails/rails,EmmaB/rails-1,rails/rails,notapatch/rails,kmcphillips/rails,yhirano55/rails,kmcphillips/rails,iainbeeston/rails,Stellenticket/rails,MSP-Greg/rails,mechanicles/rails,yahonda/rails,shioyama/rails,yawboakye/rails,georgeclaghorn/rails,Erol/rails,palkan/rails,esparta/rails,esparta/rails,betesh/rails,vipulnsward/rails,Stellenticket/rails,georgeclaghorn/rails,iainbeeston/rails,repinel/rails,Envek/rails,eileencodes/rails,Envek/rails,bogdanvlviv/rails,arunagw/rails,iainbeeston/rails,iainbeeston/rails,Erol/rails,MSP-Greg/rails,gauravtiwari/rails,tgxworld/rails,Erol/rails,kddeisz/rails,rails/rails,mechanicles/rails,jeremy/rails,BlakeWilliams/rails,shioyama/rails,arunagw/rails,jeremy/rails,BlakeWilliams/rails,lcreid/rails,lcreid/rails,yahonda/rails,EmmaB/rails-1,yhirano55/rails,joonyou/rails,bogdanvlviv/rails,yalab/rails,Erol/rails,fabianoleittes/rails,rafaelfranca/omg-rails,BlakeWilliams/rails,MSP-Greg/rails,tjschuck/rails,Edouard-chin/rails,gauravtiwari/rails,EmmaB/rails-1,joonyou/rails,repinel/rails,prathamesh-sonpatki/rails,arunagw/rails,yhirano55/rails,esparta/rails,schuetzm/rails,betesh/rails,eileencodes/rails,Edouard-chin/rails,esparta/rails,yalab/rails,palkan/rails,eileencodes/rails,tgxworld/rails,notapatch/rails,vipulnsward/rails,yawboakye/rails,tgxworld/rails,prathamesh-sonpatki/rails,yahonda/rails,MSP-Greg/rails,Envek/rails,prathamesh-sonpatki/rails,fabianoleittes/rails,kddeisz/rails,Edouard-chin/rails,rafaelfranca/omg-rails,yahonda/rails