From 19ab2a29ce835cf233dc23b6109c55ce7f9b754b Mon Sep 17 00:00:00 2001
From: neil <github@byneil.com>
Date: Wed, 5 Oct 2016 13:03:45 +0800
Subject: [PATCH] fix tail for solaris

---
 acme.sh | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/acme.sh b/acme.sh
index 5d22b074..b3ab3d61 100755
--- a/acme.sh
+++ b/acme.sh
@@ -1032,7 +1032,10 @@ _head_n() {
 }
 
 _tail_n() {
-  tail -n $1
+  if ! tail -n $1 2>/dev/null ; then
+    #fix for solaris
+    tail -$1
+  fi
 }
 
 # url  payload needbase64  keyfile