grstate + summary don't't understand --local, contrary to its help

Created originally on Bitbucket by pnathan (Paul Nathan)

grstate is confused about what it can do.

grsummary also retains the same confusion.

(tag v1.13)

$ hg grstate
abort: The .hgguestrepo file is not committed.
If you wish to use the locally modified version, use the --local option.
$ hg grstate --local
hg grstate: option --local not recognized
hg grstate

options:

  --json output as a JSON array
  --mq   operate on patch repository

use "hg help grstate" to show the full help text

Note, in this instance, both .hgguestrepo and .hgmapping are added (A) to the repo, as I'm setting it up before committing. :-)