Modify Source0 Url on master branch

rubygem-rack.spec

@@ -2,11 +2,11 @@
 Name:		rubygem-rack		
 Version:	2.0.4
 Epoch:		1
-Release:	1
+Release:	2
 Summary:	A modular Ruby webserver interface
 License:	MIT and BSD	
 URL:		https://github.com/rack/rack
-Source0:	https://github.com/rack/rack/archive/rack-%{version}.gem
+Source0:	https://rubygems.org/downloads/rack-%{version}.gem
 
 BuildRequires:	rubygems-devel ruby 
 BuildArch: 	noarch
@@ -75,5 +75,8 @@ done
 %{gem_instdir}/%{gem_name}.gemspec
 
 %changelog
+* Wed Sep 9 2020 Ge Wang <wangge20@huawei.com> - 1:2.0.4-2
+- Modify Source0 Url
+
 * Thu Mar 5 2020 openEuler Buildteam <buildteam@openeuler.org> - 1:2.0.4-1
 - Package init