Use floor over round to calculate the percentage (#1195)
Use floor over round to calculate the percentage (#1195)

If we compile documentation where only a small fraction is undocumented,
it is misleading to see 100% coverage - 99% is more intuitive.

Fixes #1194
haskell/haddock,haskell/haddock,haskell/haddock,haskell/haddock,haskell/haddock