From 2d5b4a00032ef6ed03f1b5b6baea3027dfef65c5 Mon Sep 17 00:00:00 2001
From: Maarten den Braber <m@mdbraber.com>
Date: Tue, 19 May 2020 16:39:49 +0200
Subject: [PATCH] Change if-statement for private keys to more portable version

---
 acme.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/acme.sh b/acme.sh
index df16c1e7..80f5c241 100755
--- a/acme.sh
+++ b/acme.sh
@@ -1003,7 +1003,7 @@ _sign() {
 
   _sign_openssl="${ACME_OPENSSL_BIN:-openssl} dgst -sign $keyfile "
 
-  if egrep -o "BEGIN( RSA)? PRIVATE KEY" "$keyfile" >/dev/null 2>&1; then
+  if grep "BEGIN RSA PRIVATE KEY" "$keyfile" >/dev/null 2>&1; || if grep "BEGIN PRIVATE KEY" "$keyfile" >/dev/null 2>&1;
     $_sign_openssl -$alg | _base64
   elif grep "BEGIN EC PRIVATE KEY" "$keyfile" >/dev/null 2>&1; then
     if ! _signedECText="$($_sign_openssl -sha$__ECC_KEY_LEN | ${ACME_OPENSSL_BIN:-openssl} asn1parse -inform DER)"; then