Free allocated memory

No harm but silences analyzers and we are already
free-ing buffers everywhere else.

tee.c

@@ -46,6 +46,7 @@ main(int argc, char *argv[])
 	}
 	if(ferror(stdin))
 		eprintf("<stdin>: read error:");
+	free(fps);
 
 	return EXIT_SUCCESS;
 }