Fix memory leak in xspice oneshot.

src/xspice/icm/analog/oneshot/cfunc.mod

@@ -93,8 +93,10 @@ oneshot_callback(ARGS, Mif_Callback_Reason_t reason)
         case MIF_CB_DESTROY: {
             Local_Data_t *loc = STATIC_VAR (locdata);
             if (loc) {
+                if (loc->control) free(loc->control);
+                if (loc->pw) free(loc->pw);
                 free(loc);
-		STATIC_VAR (locdata) = NULL;
+                STATIC_VAR (locdata) = loc = NULL;
             }
             break;
         }