maintainers/scripts/haskell: make commit messages more consistent

Make sure they are all prefixed with haskellPackages: except for
update-hackage.sh which changes the top-level attribute
all-cabal-hashes.

maintainers/scripts/haskell/mark-broken.sh

@@ -38,7 +38,7 @@ git add $broken_config
 git add pkgs/development/haskell-modules/configuration-hackage2nix/transitive-broken.yaml
 git add pkgs/development/haskell-modules/hackage-packages.nix
 git commit -F - << EOF
-hackage2nix: Mark failing builds broken
+haskellPackages: mark builds failing on hydra as broken
 
 This commit has been generated by maintainers/scripts/haskell/mark-broken.sh
 EOF

maintainers/scripts/haskell/regenerate-hackage-packages.sh

@@ -37,7 +37,7 @@ echo "Starting hackage2nix to regenerate pkgs/development/haskell-modules/hackag
 if [[ "${1:-}" == "--do-commit" ]]; then
 git add pkgs/development/haskell-modules/hackage-packages.nix
 git commit -F - << EOF
-hackage-packages.nix: Regenerate based on current config
+haskellPackages: regenerate package set based on current config
 
 This commit has been generated by maintainers/scripts/haskell/regenerate-hackage-packages.sh
 EOF

maintainers/scripts/haskell/update-stackage.sh

@@ -61,7 +61,7 @@ sed -r \
 if [[ "${1:-}" == "--do-commit" ]]; then
 git add $stackage_config
 git commit -F - << EOF
-Stackage Nightly: $old_version -> $version
+haskellPackages: stackage-nightly $old_version -> $version
 
 This commit has been generated by maintainers/scripts/haskell/update-stackage.sh
 EOF