sssd supports usernames in allowed_uids.
The directives are LookupUserGECOS and LookupUserGroups*, fixing documentation.
Dropping dot from summary per https://fedoraproject.org/wiki/Packaging:Guidelines#Tags.
Depend on httpd-mmn per https://fedoraproject.org/wiki/PackagingDrafts/ApacheHTTPModules#Run-Time_Dependencies.
Being specific about %files filename.
Making description more generic.
Using default Fedora build flags.
Adding email address to changelog per https://fedoraproject.org/wiki/Packaging:Guidelines#Changelogs.
MUST: Packages must not provide RPM dependency information when that
information is not global in nature, or are otherwise handled (e.g.
through a virtual provides system). e.g. a plugin package containing
a binary shared library must not "provide" that library unless it is
accessible through the system library paths.

https://fedoraproject.org/wiki/Packaging:AutoProvidesAndRequiresFiltering#Summary