From c5f2df5c9304120eb740a188e1f533a54414e925 Mon Sep 17 00:00:00 2001
From: neil <git@byneil.com>
Date: Sun, 17 Apr 2016 19:16:48 +0800
Subject: [PATCH] fix compatible for sh. head -n -1  is not supported on
 pfsense.

---
 acme.sh | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/acme.sh b/acme.sh
index 7d3b30c0..0453240d 100755
--- a/acme.sh
+++ b/acme.sh
@@ -194,7 +194,7 @@ _getfile() {
     _err "Can not find start line: $startline"
     return 1
   fi
-
+  i="$(_math $i + 1)"
   _debug i $i
   
   j="$(grep -n --  "$endline"  $filename | cut -d : -f 1)"
@@ -202,10 +202,10 @@ _getfile() {
     _err "Can not find end line: $endline"
     return 1
   fi
-
+  j="$(_math $j - 1)"
   _debug j $j
   
-  sed -n $i,${j}p  "$filename" | head -n -1 | tail -n +2
+  sed -n $i,${j}p  "$filename"
 
 }