openssl (master)$ apps/openssl dgst -sha256 -mac hmac -macopt key:123456901234567890123456789012 </dev/null
MAC parameter error "key:123456901234567890123456789012"
openssl (master)$ git status
On branch master
Your branch is up-to-date with 'origin/master'.
nothing to commit, working tree clean
openssl (master)$ git describe
OpenSSL_1_1_1-2428-ge0e68f9e34
openssl (master)$