- Applied sr#64215, added comment explaining what it does

- KVPNC is unable to parse openvpn version [bnc#679153]

OBS-URL: https://build.opensuse.org/package/show/network:vpn/openvpn?expand=0&rev=23

openvpn.spec

@@ -38,7 +38,6 @@ Source4:        client-netconfig.up
 Source5:        client-netconfig.down
 Patch1:         %{name}-2.1-plugin-man.dif
 Patch2:         %{name}-2.1-plugin-build.dif
-Patch3:         openvpn-no-build-date.patch
 BuildRoot:      %{_tmppath}/%{name}-%{version}-build
 BuildRequires:  lzo-devel openssl-devel
 BuildRequires:  iproute2 pam-devel
@@ -130,11 +129,13 @@ Authors:
 %setup -q -n %{name}-%{upstream_version}
 %patch1 -p0
 %patch2 -p0
-%patch3
 sed -e "s|@PLUGIN_DIR@|%{plugin_dir}|g" \
     -e "s|@PLUGIN_LIBDIR@|%{plugin_libdir}|g" \
     -e "s|@PLUGIN_DOCDIR@|%{_defaultdocdir}/%{name}|g" \
     -i openvpn.8
+# the build __DATE__ causes obs rebuild/republish of binaries;
+# use the date of version.m4 file in the tar archive instead
+sed -e "s|\" __DATE__|$(date '+%b %e %Y' -r version.m4)\"|g" -i options.c
 
 %build
 autoreconf -fi