Index: head/gnu/usr.bin/groff/mdate.sh
===================================================================
--- head/gnu/usr.bin/groff/mdate.sh	(revision 307149)
+++ head/gnu/usr.bin/groff/mdate.sh	(revision 307150)
@@ -1,9 +1,8 @@
 #!/bin/sh
 # $FreeBSD$
 
 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)