[PATCH] getpt.3: Remove mention of O_NOCTTY

[Samuel Thibault <samuel.thibault@xxxxxxxxxxxx>]

The glibc implementation of getpt has actually never been setting
O_NOCTTY when opening /dev/ptmx or BSD ptys.

Signed-off-by: Samuel Thibault <samuel.thibault@xxxxxxxxxxxx>

--- ./man3/getpt.3.orig	2019-12-31 17:58:50.046714199 +0100
+++ ./man3/getpt.3	2019-12-31 17:59:00.706722831 +0100
@@ -21,7 +21,7 @@
 .PP
 .in +4n
 .EX
-open("/dev/ptmx", O_RDWR | O_NOCTTY);
+open("/dev/ptmx", O_RDWR);
 .EE
 .in
 .PP