Fix gnus-group-describe-all-groups (bug#35233)

This fixes oversights from
2018-04-26T16:26:27-07:00!eric@ericabrahamsen.net and
2016-02-13T18:45:11+11:00!larsi@gnus.org.
* lisp/gnus/gnus-group.el (gnus-group-describe-all-groups): Insert
group name and description instead of group name twice.  Do not pass
a hash-table to intern.  Call sort with correct number of arguments.
parent 7308c2ed
Pipeline #1277 failed with stage
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