Skip installing/unlinking files without doedit set
--- a/plugins/sudoers/visudo.c
+++ b/plugins/sudoers/visudo.c
@@ -247,6 +247,8 @@
 
     /* Install the sudoers temp files. */
     tq_foreach_fwd(&sudoerslist, sp) {
+	if (!sp->doedit)
+	    continue;
 	if (!sp->modified)
 	    (void) unlink(sp->tpath);
 	else