data/haskell-statestack-0.3/Control/Monad/StateStack.hs:98: hist ==> heist, his
data/haskell-statestack-0.3/Control/Monad/StateStack.hs:99: hist ==> heist, his
data/haskell-statestack-0.3/Control/Monad/StateStack.hs:100: hist ==> heist, his