properly finalize the B<CMS_ContentInfo> structure will give unpredictable
results.
-Several functions including SMIME_write_CMS(), d2i_CMS_bio_stream(),
+Several functions including SMIME_write_CMS(), i2d_CMS_bio_stream(),
PEM_write_bio_CMS_stream() finalize the structure. Alternatively finalization
can be performed by obtaining the streaming ASN1 B<BIO> directly using
BIO_new_CMS().