!50 update code obtaining address

From: @zhang-mingyi66 
Reviewed-by: @bitcoffee 
Signed-off-by: @bitcoffee

libbpf.spec

@@ -4,12 +4,12 @@
 
 Name:           %{githubname}
 Version:        %{githubver}
-Release:        1
+Release:        2
 Summary:        Libbpf library
 
 License:        LGPLv2 or BSD
 URL:            https://github.com/%{githubname}/%{githubname}
-Source:         https://github.com/%{githubname}/%{githubname}/archive/%{githubname}-%{githubver}.tar.gz
+Source:         https://github.com/%{githubname}/%{githubname}/archive/refs/tags/v%{githubver}.tar.gz
 BuildRequires:  gcc elfutils-libelf-devel elfutils-devel
 
 #patches
@@ -66,6 +66,9 @@ developing applications that use %{name}
 %{_libdir}/libbpf.a
 
 %changelog
+* Sat Nov 26 2022 zhangmingyi <zhangmingyi@huawei.com> -2:0.8.1-2
+- libbpf.spec - modify Source address
+
 * Tue Nov 8 2022 liuxin <liuxin350@huawei.com> - 2:0.8.1-1
 - update libbpf from v0.3 to v0.8.1