Define %{srcname} outside of the RPM spec

Otherwise it doesn't match for weekly packages.

package-rpm

@@ -51,6 +51,7 @@ mock() {
 		--define "dist .${ELVER}" \
 		--define "versiontag ${RPMVERSION}" \
 		--define "releasetag ${RPMRELEASE:-1}" \
+		--define "srcname $DIST_DIR" \
 		--define "v_rc ${RELEASE}" \
 		"$@"
 }

redhat/varnish.spec

 %define vd_rc %{?v_rc:-%{?v_rc}}
-%define srcname %{name}-%{version}%{?vd_rc}
 
 %define    _use_internal_dependency_generator 0
 %define __find_provides %{_builddir}/%{srcname}/find-provides