Currently, tl-memberof-group only accepts a single group argument. It could be useful to be able to specify multiple groups. Of course, in this case we need to decide if the command should return true only if the user is a member of all those groups, or any of those groups. If believe the latter is best. That would also follow how TLDC works.
*** Bug 3543 has been marked as a duplicate of this bug. ***
Tweaked in 30101.
Verfied functionality using build 4691 and it works as expected;
One can now specify several groups to check against and misspelled groups are clearly reported to stderr.