Fix bug in string stripper plugin's set_dataset (Fixes #629)
Fix bug in string stripper plugin's set_dataset (Fixes #629)

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