Update htop.spec

I hope this cleanup changes can make spec file more simple and accurate with Fedora packaging guidelines.

htop.spec

@@ -1,9 +1,8 @@
 Name: htop
 Version: 2.0.2
-Release: 4%{?dist}
+Release: 5%{?dist}
 Summary: Interactive process viewer
-Group: Applications/System
+License: GPLv2+
-License: GPL+
 URL: http://hisham.hm/htop/
 Source0: http://hisham.hm/htop/releases/%{version}/%{name}-%{version}.tar.gz
 
@@ -17,7 +16,7 @@ htop is an interactive text-mode process viewer for Linux, similar to
 top(1).
 
 %prep
-%setup -q
+%autosetup
 sed -i s#"INSTALL_DATA = @INSTALL_DATA@"#"INSTALL_DATA = @INSTALL_DATA@ -p"# Makefile.in
 
 %build
@@ -32,11 +31,11 @@ autoreconf -v -f -i
 	--enable-cgroup \
 	--enable-oom
 
-make %{?_smp_mflags}
+%make_build
 
 %install
 rm -rf $RPM_BUILD_ROOT
-make install DESTDIR=$RPM_BUILD_ROOT
+%make_install
 
 #remove empty direcories
 rm -rf $RPM_BUILD_ROOT%{libdir}
@@ -46,13 +45,16 @@ rm -rf $RPM_BUILD_ROOT%{includedir}
 rm -rf $RPM_BUILD_ROOT%{_datadir}/applications/
 
 %files
-%defattr(-,root,root,-)
+%doc AUTHORS ChangeLog README
-%doc AUTHORS COPYING ChangeLog README
+%license COPYING
 %{_bindir}/htop
 %{_datadir}/pixmaps/htop.png
 %{_mandir}/man1/htop.1*
 
 %changelog
+* Sun Sep 10 2017 Vasiliy N. Glazov <vascom2@gmail.com> - 2.0.2-5
+- Cleanup spec
+
 * Wed Aug 02 2017 Fedora Release Engineering <releng@fedoraproject.org> - 2.0.2-4
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_27_Binutils_Mass_Rebuild