!25 fix obsoletes in spec

From: @panxh_purple 
Reviewed-by: @xiezhipeng1 
Signed-off-by: @xiezhipeng1

libidn2.spec

@@ -1,6 +1,6 @@
 Name:           libidn2
 Version:        2.3.0
-Release:        3
+Release:        4
 Summary:        GNU IDN Library
 License:        (GPLv2+ or LGPLv3+) and GPLv3+
 URL:            https://www.gnu.org/software/libidn/#libidn2
@@ -13,7 +13,7 @@ Patch1:         Implement-full-roundtrip-for-lookup-functionality.patch
 BuildRequires:  gcc gettext libunistring-devel autoconf texinfo automake
 Provides:       bundled(gnulib)
 Provides:       idn2
-Obsoletes:      idn2
+Obsoletes:      idn2 < %{version}-%{release}
 
 %description
 Libidn2 is a free software implementation of IDNA2008, Punycode and TR46.
@@ -75,6 +75,9 @@ make %{?_smp_mflags} -C tests check
 %{_datadir}/gtk-doc/
 
 %changelog
+* Thu Sep 8 2022 panxiaohe <panxh.life@foxmail.com> - 2.3.0-4
+- fix obsoletes in spec
+
 * Wed Jun 24 2020 wangchen <wangchen137@huawei.com> - 2.3.0-3
 - Type:bugfix
 - ID:NA