Suppress duplicate CSM_CLUSTER line

src/cluster/cluster.cpp

@@ -1075,8 +1075,10 @@ int cluster_jxi488_cycle(int jxi488, ScattererConfiguration *sconf, GeometryConf
 	      sprintf(virtual_line, "  Fk=%15.7lE\n\0", fz);
 	      output->append_line(virtual_line);
 	      double alamb = 2.0 * 3.141592653589793 / cid->vk;
-	      sprintf(virtual_line, "INSERTION: CSM_CLUSTER  %15.7lE%15.7lE%15.7lE%15.7lE\n\0", alamb, scasm, abssm, extsm);
-	      output->append_line(virtual_line);
+	      if (ilr210 == 1) {
+		sprintf(virtual_line, "INSERTION: CSM_CLUSTER  %15.7lE%15.7lE%15.7lE%15.7lE\n\0", alamb, scasm, abssm, extsm);
+		output->append_line(virtual_line);
+	      }
 	    } // ilr210 loop
 	    double rmbrif = (real(cid->c1ao->fsacm[0][0]) - real(cid->c1ao->fsacm[1][1])) / real(cid->c1ao->fsacm[0][0]);
 	    double rmdchr = (imag(cid->c1ao->fsacm[0][0]) - imag(cid->c1ao->fsacm[1][1])) / imag(cid->c1ao->fsacm[0][0]);