git: 13a9da7d5550 - main - clock_gettime.2: Add cross references and fix linter warnings

The branch main has been updated by 0mp (doc, ports committer):

URL: https://cgit.FreeBSD.org/src/commit/?id=13a9da7d5550392a754fcc72d8ec74c0ddbec26f

commit 13a9da7d5550392a754fcc72d8ec74c0ddbec26f
Author:     Mateusz Piotrowski <0mp@FreeBSD.org>
AuthorDate: 2022-07-08 19:51:03 +0000
Commit:     Mateusz Piotrowski <0mp@FreeBSD.org>
CommitDate: 2022-07-08 19:51:03 +0000

    clock_gettime.2: Add cross references and fix linter warnings
    
    MFC after:      3 days
---
 lib/libc/sys/clock_gettime.2 | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/lib/libc/sys/clock_gettime.2 b/lib/libc/sys/clock_gettime.2
index d620ed0f03f2..b04732fc993e 100644
--- a/lib/libc/sys/clock_gettime.2
+++ b/lib/libc/sys/clock_gettime.2
@@ -29,7 +29,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd July 1, 2021
+.Dd July 8, 2022
 .Dt CLOCK_GETTIME 2
 .Os
 .Sh NAME
@@ -132,7 +132,9 @@ struct timespec {
 .Pp
 Only the super-user may set the time of day, using only
 .Fa CLOCK_REALTIME .
-If the system securelevel is greater than 1 (see
+If the system
+.Xr securelevel 7
+is greater than 1 (see
 .Xr init 8 ) ,
 the time may only be advanced.
 This limitation is imposed to prevent a malicious super-user
@@ -185,7 +187,9 @@ The clock IDs
 .Fa CLOCK_UPTIME_FAST ,
 .Fa CLOCK_UPTIME_PRECISE ,
 .Fa CLOCK_SECOND
-are FreeBSD extensions to the POSIX interface.
+are
+.Fx
+extensions to the POSIX interface.
 .Sh HISTORY
 The
 .Fn clock_gettime ,