!12 【轻量级 PR】：添加%{mod_name}宏

From: @hongjinghao 
Reviewed-by: @licunlong 
Signed-off-by: @licunlong

perl-Pod-Usage.spec

@@ -1,11 +1,13 @@
-Name:                perl-Pod-Usage
+%define mod_name Pod-Usage
+
+Name:                perl-%{mod_name}
 Epoch:               4
 Version:             2.03
-Release:             1
+Release:             2
 Summary:             Print a usage message from embedded pod documentation
 License:             GPL+ or Artistic-1.0
-URL:                 https://metacpan.org/release/Pod-Usage
-Source0:             https://cpan.metacpan.org/authors/id/M/MA/MAREKR/Pod-Usage-%{version}.tar.gz
+URL:                 https://metacpan.org/release/%{mod_name}
+Source0:             https://cpan.metacpan.org/authors/id/M/MA/MAREKR/%{mod_name}-%{version}.tar.gz
 
 
 BuildArch:           noarch
@@ -27,7 +29,7 @@ command line options and arguments. If the verbose level is 2, then the entire m
 %package_help
 
 %prep
-%autosetup -n Pod-Usage-%{version} -p1
+%autosetup -n %{mod_name}-%{version} -p1
 
 %build
 perl Makefile.PL INSTALLDIRS=vendor NO_PACKLIST=1 NO_PERLLOCAL=1
@@ -52,6 +54,9 @@ make test
 %{_mandir}/man3/*
 
 %changelog
+* Tue Nov 1  2022 hongjinghao <hongjinghao@huawei.com> - 4:2.03-2
+- use %{mod_name} marco
+
 * Tue Oct 25 2022 zhangyao <zhangyao108@huawei.com> - 4:2.03-1
 - upgrade version to 2.03