modernize spec

perl-Filesys-Df.spec

@@ -6,7 +6,6 @@ License:        GPL+ or Artistic
 Group:          Development/Libraries
 URL:            http://search.cpan.org/dist/Filesys-Df/
 Source0:        http://www.cpan.org/modules/by-module/Filesys/Filesys-Df-%{version}.tar.gz
-BuildRoot:      %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
 BuildRequires:  perl(ExtUtils::MakeMaker)
 Requires:       perl(:MODULE_COMPAT_%(eval "`%{__perl} -V:version`"; echo $version))
 
@@ -27,24 +26,18 @@ sed -i 's/\r//' README
 make %{?_smp_mflags}
 
 %install
-rm -rf $RPM_BUILD_ROOT
+make pure_install PERL_INSTALL_ROOT=%{buildroot}
 
-make pure_install PERL_INSTALL_ROOT=$RPM_BUILD_ROOT
+find %{buildroot} -type f -name .packlist -exec rm -f {} \;
+find %{buildroot} -type f -name '*.bs' -empty -exec rm -f {} \;
+find %{buildroot} -depth -type d -exec rmdir {} 2>/dev/null \;
 
-find $RPM_BUILD_ROOT -type f -name .packlist -exec rm -f {} \;
-find $RPM_BUILD_ROOT -type f -name '*.bs' -empty -exec rm -f {} \;
-find $RPM_BUILD_ROOT -depth -type d -exec rmdir {} 2>/dev/null \;
-
-%{_fixperms} $RPM_BUILD_ROOT/*
+%{_fixperms} %{buildroot}/*
 
 %check
 make test
 
-%clean
-rm -rf $RPM_BUILD_ROOT
-
 %files
-%defattr(-,root,root,-)
 %doc Changes README
 %{perl_vendorarch}/*
 %{_mandir}/man3/*