fix Haskell programming exercise options pragma regex (#2690)
fix Haskell programming exercise options pragma regex (#2690)


ls1intum/ArTEMiS,ls1intum/ArTEMiS,ls1intum/ArTEMiS,ls1intum/ArTEMiS,ls1intum/ArTEMiS,ls1intum/ArTEMiS