message: Fix typo in zsh _cargo completions
diff: @@ -519,7 +519,7 @@ _benchmark_names()
  _get_names_from_array "bench"
  }
  -# These flags are mutally exclusive specifiers for the scope of a command; as
  +# These flags are mutually exclusive specifiers for the scope of a command; as
  # they are used in multiple places without change, they are expanded into the
  # appropriate command's `_arguments` where appropriate.
  set command_scope_spec
  