Sorry, there is another thing I forgot.  Currently ‘guix package --help’
displays the following:

--8<---------------cut here---------------start------------->8---
Usage: guix package [OPTION]... PACKAGES...
Install, remove, or upgrade PACKAGES in a single transaction.

  -i, --install=PACKAGE  install PACKAGE
  -e, --install-from-expression=EXP
                         install the package EXP evaluates to
  -r, --remove=PACKAGE   remove PACKAGE
...
--8<---------------cut here---------------end--------------->8---

I think it is not clear that multiple packages may be installed/removed
by a single command.  If it would look like this:

  -i, --install=PACKAGE...  install PACKAGEs

it may not be clear how the PACKAGEs are separated, since it is a common
practice to use "," to separate things after an "=" sign.  So I suggest
to remove "=" from ‘--install’ and ‘--remove’ options:

  -i, --install PACKAGE ...  install PACKAGEs

In my opinion it is the most clear way for that.  WDYT?

The modified patch is attached.