--------------------------------------------------------------------- RUN lint tests/cmdline-lint.hs FILE tests/cmdline-lint.hs foo = map f (map g xs) OUTPUT tests/cmdline-lint.hs:2:7-22: Suggestion: Use map once Found: map f (map g xs) Perhaps: map (f . g) xs 1 hint --------------------------------------------------------------------- RUN tests/cmdline-bare.hs FILE tests/cmdline-bare.hs foo = map f (map g xs) OUTPUT tests/cmdline-bare.hs:2:7-22: Suggestion: Use map once Found: map f (map g xs) Perhaps: map (f . g) xs 1 hint