re-add centos macro

SOURCES/Contributors

@@ -1,8 +1,29 @@
 # -*- coding: utf-8 -*-
 
+We want to thank you for installing Rocky Linux.
+
 The Rocky Linux OS Distribution would not be possible without the hard work and
-the dedication of the community.
+the dedication of the community. Building a distribution is far from easy, but
+with unified visions and goals, anything is possible, and Rocky is one of many
+examples of this.
 
 # Special Recognition #
 
 Contributors:
+  Mustafa Gezen
+  Skip Grube
+  Pablo Greco
+  Louis Abel
+  Neil Hanlon
+  Taylor Goodwill
+  R. Leigh Hennig
+  Hayden Young
+  @jkwong
+  @glenjarvis
+  Michael Young
+  Anthony Staunton
+
+Infrastructure and Operations:
+  R. Leigh Hennig
+  Taylor Goodwill
+  Neil Hanlon

SPECS/rocky-release.spec

@@ -88,6 +88,7 @@ cat > %{buildroot}%{_sysconfdir}/rpm/macros.dist << EOF
 
 %%rocky_ver %{major}
 %%rocky %{major}
+%%centos %{major}
 %%rhel %{major}
 %%dist .el%{major}
 %%el%{major} 1
@@ -127,3 +128,4 @@ install -p -m 0644 %{_sourcedir}/*.preset %{buildroot}%{_prefix}/lib/systemd/sys
 %changelog
 * Mon Feb 01 2021 Louis Abel <label@rockylinux.org> - 8.3-1
 - Initial Rocky Release 8.3 based on CentOS 8.3
+- Keep centos rpm macro to reduce package modification burden