!3 修复因缺少依赖导致编译失败问题

From: @wu-leilei
Reviewed-by: @hht8,@myeuler
Signed-off-by: @myeuler

ipwatchd.spec

@@ -2,13 +2,13 @@
 
 Name:    ipwatchd
 Version: 1.3.0
-Release: 2
+Release: 3
 Summary: IPwatchD is a simple daemon that analyses all incoming ARP packets in order to detect IP conflicts on Linux
 License: GPLv2
 URL:	 https://ipwatchd.sourceforge.io/
 Source0: https://github.com/jariq/IPwatchD/releases/download/v%{version}/%{name}-%{version}.tar.gz
 
-BuildRequires: 	gcc autoconf automake libnet-devel libpcap-devel 
+BuildRequires: 	gcc autoconf automake libnet-devel libpcap-devel systemd
 
 %description
 IPwatchD can be configured to listen on one or more interfaces (alias interfaces are also supported) in active or passive mode. In active mode it protects your host before IP takeover by answering Gratuitous ARP requests received from conflicting system. In passive mode it just records information about conflict through standard syslog interface.
@@ -44,6 +44,9 @@ mv %{buildroot}/lib/systemd/system/* %{buildroot}/%{_unitdir}
 
 
 %changelog
+* Mon Jun 07 2021 wulei <wulei80@huawei.com>
+- fixes failed: File must begin with "/": %{_unitdir}/ipwatchd.server
+
 * Tue Oct 13 2020 liqingqing_1229 <liqingqing3@huawei.com>
 - update source0