fixed usage of openssl sha in newer openssl versions by using direct binary output
fixed usage of openssl sha in newer openssl versions by using direct binary output

dennisschuerholz/dehydrated,ahnooie/dehydrated,lukas2511/letsencrypt.sh,erdgeist/letsencrypt.sh,Rayne/letsencrypt.sh,lukas2511/dehydrated,erorus/letsencrypt.sh,erdgeist/letsencrypt.sh,Vitexus/dehydrated