unbreak readpassphrase.c sync

openbsd-compat/readpassphrase.c

@@ -91,8 +91,11 @@ restart:
 	 * Read and write to /dev/tty if available.  If not, read from
 	 * stdin and write to stderr unless a tty is required.
 	 */
+#ifndef O_CLOEXEC
+# define O_CLOEXEC 0
+#endif
 	if ((flags & RPP_STDIN) ||
-	    (input = output = __pledge_open(_PATH_TTY, O_RDWR | O_CLOEXEC)) == -1) {
+	    (input = output = open(_PATH_TTY, O_RDWR | O_CLOEXEC)) == -1) {
 		if (flags & RPP_REQUIRE_TTY) {
 			errno = ENOTTY;
 			return(NULL);