docs: def uninstall(pkg,
                user=None,
                env=None):
      '''
      Uninstall a cabal package.
  
      pkg
          The package to uninstall
      user
          The user to run ghc-pkg unregister with
      env
          Environment variables to set when invoking cabal. Uses the
          same ``env`` format as the :py:func:`cmd.run
          <salt.modules.cmdmod.run>` execution function
  
      CLI Example:
  
      .. code-block:: bash
  
          salt '*' cabal.uninstall ShellCheck
  
      '''
      cmd = ['ghc-pkg unregister']
      cmd.append('"{0}"'.format(pkg))
  
      result = __salt__['cmd.run_all'](' '.join(cmd), runas=user, env=env)
  
      if result['retcode'] != 0:
          raise CommandExecutionError(result['stderr'])
  
      return result