poll.2: SYNOPSIS: Add _Nullable

Signed-off-by: Alejandro Colomar <alx@kernel.org>

diff --git a/man2/poll.2 b/man2/poll.2
index 0d67a6addb848e00422fb799dc857e82b2019686..fa22e20025812479c2e8b3af3ff073ef9720df94 100644 (file)
--- a/man2/poll.2
+++ b/man2/poll.2
@@ -23,7 +23,8 @@ Standard C library
 .B #include <poll.h>
 .PP
 .BI "int ppoll(struct pollfd *" fds ", nfds_t " nfds ,
-.BI "          const struct timespec *" tmo_p ", const sigset_t *" sigmask );
+.BI "          const struct timespec *_Nullable " tmo_p ,
+.BI "          const sigset_t *_Nullable " sigmask );
 .fi
 .SH DESCRIPTION
 .BR poll ()