Free the events and event base before returning from replay_session().

Coverity CID 104116, 104117.

plugins/sudoers/sudoreplay.c

@@ -514,6 +514,9 @@ replay_session(const double max_wait, const char *decimal)
 	if (iov != &iovb)
 	    free(iov);
     }
+    sudo_ev_base_free(evbase);
+    sudo_ev_free(input_ev);
+    sudo_ev_free(output_ev);
     debug_return;
 }