Comment # 3 on bug 1091961 from V��t��zslav ������ek

c_rehash is an obsolete script that will likely be dropped upstream in the
future.
"openssl rehash" is the alternative.
ca-certificates uses p11-kit for the certificate management.

Anyway, commit
https://github.com/openssl/openssl/commit/7ee2a43069913fb7c444c656048996ea92cc465e
has been submitted to both Factory and SLE-15.