Add another spec for Dataset#exclude
Add another spec for Dataset#exclude

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