Search for executable names #1470

Please allow search for executable names.

First time me hearing about hpack-dhall-cabal and there is no such package: https://hackage.haskell.org/package/hpack-dhall-cabal.
SOURCE: haskell/cabal#9984 (comment)

No results found for https://hackage.haskell.org/packages/search?terms=hpack-dhall-cabal

In this instance, this is an executable in the hpack-dhall package.

...
name:           hpack-dhall
...
executable dhall-hpack-cabal
...