use "openssl dgst" instead of "openssl sha" (fixes #120)
use "openssl dgst" instead of "openssl sha" (fixes #120)

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