---------------------------------------------------------------------
RUN tests/directory
FILE tests/directory/File1.hs
 foo = map f . map g
FILE tests/directory/File2.lhs
> foo = map f . map g
OUTPUT
tests/directory/File1.hs:1:8-20: Suggestion: Use map once
Found:
  map f . map g
Perhaps:
  map (f . g)

tests/directory/File2.lhs:1:9-21: Suggestion: Use map once
Found:
  map f . map g
Perhaps:
  map (f . g)

2 hints

---------------------------------------------------------------------
RUN tests/directory --extension=lhs
OUTPUT
tests/directory/File2.lhs:1:9-21: Suggestion: Use map once
Found:
  map f . map g
Perhaps:
  map (f . g)

1 hint