Man pages matching name dh_haskell_blurbs in section 1:

dh_haskell_blurbs.1.en	debian 10 / haskell-devscripts-minimal
dh_haskell_blurbs.1.en	debian 11 / haskell-devscripts-minimal
dh_haskell_blurbs.1.en	debian 12 / haskell-devscripts-minimal