SPEC: use sysusers as additional source

This partially reverts 736430a

The reason is that 'sysusers_create_compat' macro is evaluated after
the tar ball is extracted, after SSSD is built and after content of
the BUILD and BUILDROOT directories is removed, so otherwise there is
no extracted or built data available anymore.

See SSSD#7267 (comment) for
details.

contrib/sssd.spec.in

@@ -65,6 +65,9 @@ Summary: System Security Services Daemon
 License: GPLv3+
 URL: https://github.com/SSSD/sssd/
 Source0: %{url}/archive/%{version}/%{name}-%{version}.tar.gz
+%if %{use_sysusers}
+Source1: sssd.sysusers
+%endif
 
 ### Patches ###
 # Place your patches here:
@@ -733,7 +736,7 @@ do
 done
 
 %if %{use_sysusers}
-install -D -p -m 0644 contrib/sssd.sysusers %{buildroot}%{_sysusersdir}/sssd.conf
+install -D -p -m 0644 %{SOURCE1} %{buildroot}%{_sysusersdir}/sssd.conf
 %endif
 
 %files
@@ -1047,7 +1050,7 @@ install -D -p -m 0644 contrib/sssd.sysusers %{buildroot}%{_sysusersdir}/sssd.con
 %if %{use_sssd_user}
 %pre common
 %if %{use_sysusers}
-%sysusers_create_compat contrib/sssd.sysusers
+%sysusers_create_compat %{SOURCE1}
 %else
 getent group sssd >/dev/null || groupadd -r sssd
 getent passwd sssd >/dev/null || useradd -r -g sssd -d / -s /sbin/nologin -c "User for sssd" sssd