Updates to EVP_PKEY_encrypt.pod submitted by user Bernardh via the wiki
Minor changes made by Matt Caswell.

Reviewed-by: Dr. Stephen Henson <steve@openssl.org>
Updates to X509_NAME_add_entry_by_txt.pod submitted by user Bernardh via the wiki
Minor changes made by Matt Caswell.

Reviewed-by: Dr. Stephen Henson <steve@openssl.org>
Updates to X509_NAME_get_index_by_NID.pod submitted by user Bernardh via the wiki
Minor changes made by Matt Caswell

Reviewed-by: Dr. Stephen Henson <steve@openssl.org>