!31 Update upstream version to 6.4.30

From: @tanyulong2021 
Reviewed-by: @small_leek 
Signed-off-by: @small_leek

fetchmail-6.4.22.tar.xz.asc

@@ -1,16 +0,0 @@
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fetchmail-6.4.30.tar.xz.asc

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fetchmail.spec

@@ -1,14 +1,19 @@
 Summary: 	     A remote mail retrieval and forwarding utility
 Name: 		     fetchmail
-Version:             6.4.22
+Version: 	     6.4.30
 Release: 	     1
-URL:                 http://www.fetchmail.info/
+Source0: 	     http://downloads.sourceforge.net/%{name}/%{name}-%{version}.tar.xz
-License:             GPL+ and Public Domain
+Source1: 	     http://downloads.sourceforge.net/%{name}/%{name}-%{version}.tar.xz.asc
-Source0:             https://sourceforge.net/projects/%{name}/files/branch_6.4/%{name}-%{version}.tar.xz
+# systemd service file
-Source1:             https://sourceforge.net/projects/%{name}/files/branch_6.4/%{name}-%{version}.tar.xz.asc
 Source2: 	     fetchmail.service
+# example configuration file
 Source3: 	     fetchmailrc.example
+URL: http://www.fetchmail.info/
+# For a breakdown of the licensing, see COPYING
+License: 	     GPLv2+ and Public Domain
 BuildRequires: 	     gcc gettext-devel krb5-devel openssl-devel systemd python3-devel
+BuildRequires: 	     make
+
 %description
 Fetchmail is a remote mail retrieval and forwarding utility intended
 for use over on-demand TCP/IP links, like SLIP or PPP connections.
@@ -16,6 +21,7 @@ Fetchmail supports every remote-mail protocol currently in use on the
 Internet (POP2, POP3, RPOP, APOP, KPOP, all IMAPs, ESMTP ETRN, IPv6,
 and IPSEC) for retrieval. Then Fetchmail forwards the mail through
 SMTP so you can read it through your favorite mail client.
+
 Install fetchmail if you need to retrieve mail over SLIP or PPP
 connections.
 
@@ -31,14 +37,21 @@ make
 
 %install
 make install DESTDIR=$RPM_BUILD_ROOT
+
+# install example systemd unit
 mkdir -p $RPM_BUILD_ROOT%{_unitdir}
 install -p -m 644 %{SOURCE2} $RPM_BUILD_ROOT%{_unitdir}/fetchmail.service
+
+# install example config file
 mkdir -p $RPM_BUILD_ROOT%{_sysconfdir}
 install -p -m 600 %{SOURCE3} $RPM_BUILD_ROOT%{_sysconfdir}/fetchmailrc.example
+
+# remove fetchmailconf stuff
 rm -f $RPM_BUILD_ROOT%{_bindir}/fetchmailconf*
 rm -f $RPM_BUILD_ROOT%{_mandir}/man1/fetchmailconf.1*
 rm -f $RPM_BUILD_ROOT%{python3_sitelib}/fetchmailconf.py*
 rm -f $RPM_BUILD_ROOT%{python3_sitelib}/__pycache__/fetchmailconf*
+
 %find_lang %name
 
 %files -f %{name}.lang
@@ -49,6 +62,9 @@ rm -f $RPM_BUILD_ROOT%{python3_sitelib}/__pycache__/fetchmailconf*
 %config(noreplace) %attr(0600, mail, mail) %{_sysconfdir}/fetchmailrc.example
 
 %changelog
+* Thu Jun 23 2022 tanyulong <tanyulong@kylinos.cn> - 6.4.30-1
+- Update upstream version to 6.4.30
+
 * Tue Sep 14 2021 yaoxin <yaoxin30@huawei.com> - 6.4.22-1
 - Update to 6.4.22 for fix CVE-2021-39272