Merge pull request #2502 from rbenv/sha2-openssl

compute_sha2: drop support for OS X Leopard

Author: mislav

bin/ruby-build

@@ -313,9 +313,7 @@ compute_sha2() {
     output="$(shasum -a 256 -b)" || return 1
     echo "${output% *}"
   elif type openssl &>/dev/null; then
-    local openssl
-    openssl="$(command -v "$(brew --prefix openssl 2>/dev/null || true)"/bin/openssl openssl | head -1)"
-    output="$("$openssl" dgst -sha256 2>/dev/null)" || return 1
+    output="$(openssl dgst -sha256 2>/dev/null)" || return 1
     echo "${output##* }"
   elif type sha256sum &>/dev/null; then
     output="$(sha256sum -b)" || return 1