use release number in RPM spec file

pkg/rpm/ser.spec-4.1

@@ -66,7 +66,7 @@ The ser-jabber package contains a sip to jabber message translator.
 # membership and uri checking.
 
 %prep
-%setup -n %{name}-%{ver}-rc0
+%setup -n %{name}-%{ver}-%{rel}
 
 %build
 make all skip_modules="%EXCLUDED_MODULES"      cfg-target=/%{_sysconfdir}/ser/