* xlat/clone_flags.in (CLONE_PIDFD): New constant introduced by Linux
kernel commit v5.2-rc1~158^2~2.
* NEWS: Mention this.
==============================================
* Improvements
- * Updated lists of AUDIT_* and V4L2_* constants.
+ * Updated lists of AUDIT_*, CLONE_*, and V4L2_* constants.
Noteworthy changes in release 5.1 (2019-05-22)
==============================================
CLONE_FILES 0x00000400
CLONE_SIGHAND 0x00000800
CLONE_IDLETASK 0x00001000
+CLONE_PIDFD 0x00001000
CLONE_PTRACE 0x00002000
CLONE_VFORK 0x00004000
CLONE_PARENT 0x00008000