Updating link to change in openSUSE:Factory/Botan revision 7.0

OBS-URL: https://build.opensuse.org/package/show/devel:libraries:c_c++/Botan?expand=0&rev=67878206045ab00763c37bcca10436cb

Botan.spec

@@ -21,7 +21,7 @@
 
 Name:           Botan
 Version:        1.8.8
-Release:        2
+Release:        3
 Url:            http://botan.randombit.net
 Summary:        A C++ Crypto Library
 License:        BSD3c
@@ -29,7 +29,6 @@ AutoReqProv:    on
 Prefix:         /usr
 Group:          Development/Libraries/C and C++
 Source:         %{name}-%{version}.tar.bz2
-Source1:        Botan-use_rpm_opt_flags.patch
 Patch0:         Botan-inttypes.patch
 Patch1:         Botan-ull_constants.patch.bz2
 Patch2:         Botan-fix_install_paths.patch
@@ -105,8 +104,7 @@ export RPM_OPT_FLAGS
 				--with-gnump \
 				--with-openssl \
 				--with-tr1-implementation=system 
-patch -p0 -i %{S:1}
-make %{?_smp_mflags}
+make %{?_smp_mflags} WARN_FLAGS="$RPM_OPT_FLAGS"
 
 %install
 %makeinstall