From 74cf4301b5a71bf5c1e2e09110939cfff815b257 Mon Sep 17 00:00:00 2001
From: emaste <emaste@FreeBSD.org>
Date: Wed, 12 Oct 2016 15:49:20 +0000
Subject: [PATCH] Avoid using 'head' in generating groff doc date

It may not be available in certain cross build cases.

Note that this is a slight change in functionality, in that now only the
first line of the source ChangeLog file is processed. This is acceptable
as groff will be retired and we won't encounter a possibly-different
ChangeLog format.

Reported by:	jhibbits
Tested by:	jhibbits
---
 gnu/usr.bin/groff/mdate.sh | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/gnu/usr.bin/groff/mdate.sh b/gnu/usr.bin/groff/mdate.sh
index 70a052abc046..03a4a090685e 100755
--- a/gnu/usr.bin/groff/mdate.sh
+++ b/gnu/usr.bin/groff/mdate.sh
@@ -4,6 +4,5 @@
 set -e
 test -r "$1"
 export LC_ALL=C
-changelog_date=$(sed -E -n 's/^([0-9]{4}-[0-9]{2}-[0-9]{2}).*$/\1/p' "$1" |\
-    head -n 1)
+changelog_date=$(sed -E -n '1s/^([0-9]{4}-[0-9]{2}-[0-9]{2}).*$/\1/p' "$1")
 echo $(date -j -f %Y-%m-%d +"%e %B %Y" $changelog_date)