Fix wrong example code in RDoc for Model#{set,update}_fields
Fix wrong example code in RDoc for Model#{set,update}_fields

t-morgan/sequel,reubano/sequel,davidbegin/sequel,nju520/sequel,t-morgan/sequel,uhoh-itsmaciek/sequel,dennis-d/custom_sequel,freshpay/sequel,knut2/sequel,mpalmer/sequel,seeARMS/sequel,reubano/sequel,nicohvi/sequel,nju520/sequel,freshpay/sequel,gferguson-gd/sequel,gferguson-gd/sequel,pfarrell/sequel,nicohvi/sequel,dennis-d/custom_sequel,offshore-safety/sequel,offshore-safety/sequel,uhoh-itsmaciek/sequel,bigfix/sequel,beni55/sequel,yazshel/sequel,knut2/sequel,chef/sequel,Marketcircle/sequel,davidbegin/sequel,pfarrell/sequel,beni55/sequel,offshore-safety/sequel,seeARMS/sequel,mpalmer/sequel,yazshel/sequel