Keep the 'gem.build_complete'

Otherwise RubyGems tries to recompile the binary extension.

rubygem-http_parser.rb.spec

@@ -3,7 +3,7 @@
 
 Name:		rubygem-%{gem_name}
 Version:	0.6.0
-Release:	8%{?dist}
+Release:	9%{?dist}
 Summary:	Simple callback-based HTTP request/response parser
 Group:		Development/Languages
 License:	MIT
@@ -82,7 +82,7 @@ popd
 %dir %{gem_instdir}
 %{gem_libdir}
 %{gem_extdir_mri}
-%exclude %{gem_extdir_mri}/gem.build_complete
+%{gem_extdir_mri}/gem.build_complete
 %exclude %{gem_cache}
 %{gem_spec}
 %doc %{gem_instdir}/README.md
@@ -98,7 +98,11 @@ popd
 %{gem_instdir}/tasks
 
 %changelog
-* Thu Nov 11 2018 Mamoru TASAKA <mtasaka@fedoraproject.org> - 0.6.0-8
+* Thu Jan 11 2018 Vít Ondruch <vondruch@redhat.com> - 0.6.0-9
+- Keep the 'gem.build_complete', otherwise RubyGems tries to recompile
+  the binary extension.
+
+* Thu Jan 11 2018 Mamoru TASAKA <mtasaka@fedoraproject.org> - 0.6.0-8
 - Enable rdoc generation again (fixed by ruby side)
 
 * Fri Jan 05 2018 Mamoru TASAKA <mtasaka@fedoraproject.org> - 0.6.0-7
@@ -119,5 +123,6 @@ popd
 
 * Fri Sep 02 2016 Yanis Guenane <yguenane@redhat.com> - 0.6.0-2
 - Patch the spec file to match key words in RSpec 3
+
 * Mon Jan 05 2015 Graeme Gillies <ggillies@redhat.com> - 0.6.0-1
 - Initial package