fixup! Add PackageInfos_ (haskell#3909)

Co-authored-by: Bryan Richter <[email protected]>

Author: blackheaven

doc/cabal-package.rst

@@ -3172,8 +3172,8 @@ package-related constants:
     homepage :: String
 
 Unlike :file:`Paths_{pkgname}` (see <#accessing-data-files-from-package-code>),
-:file:`PackageInfo_{pkgname}` is system and path independant, it aims to be
-easier to work with for hash-based tools (such as Nix).
+:file:`PackageInfo_{pkgname}` is system- and path-independent. It aims to be
+easier to work with for hash-based tools such as Nix.
 
 .. _system-dependent parameters: