documentation for the macro "license_user"

declares a user as being allowed to act under a given license.

It is defined in the file licenses.m4.

m4 code:

define(`license_user',
`define(rolesX$1,$2_creator_r)dnl
define(`drm_users',
patsubst(patsubst(notmember(`
$1
',patsubst(`drm_users',`
',`)notmember(`
$1
',')),`
$',)
$1,^
,))dnl
')