openssl: use explicit result for SSL_in_init (#14597)
openssl: use explicit result for SSL_in_init (#14597)

Sometimes the analysis might get funky and decide that the if-expression
below is not an if-expression. Details of how this can happen is largely
unknown, but it's easy to prevent so we will just go forward with that.

Fix #14591
dom96/Nim,dom96/Nim,dom96/Nim,dom96/Nim,dom96/Nim,dom96/Nim,dom96/Nim